Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both...

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Autosomal DNA Testing For Genetic Genealogy Information From My FTDNA Family Finder Kits

Transcript of Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both...

Page 1: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Autosomal DNA Testing

For Genetic Genealogy

Information From My

FTDNA Family Finder Kits

Page 2: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

FTDNA Family Finder

Family Finder uses autosomal DNA (inherited from both the mother and father, four

grandparents, eight great-grandparents, etc.)to provide you a breakdown of your ethnic percentages and connect you with relatives descended from any of your ancestral lines within approximately the last 5 generations.

Page 3: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

FTDNA Family Finder

Page 4: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Matches

Page 5: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Chromosome Map

Page 6: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Known Relations

Page 7: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

My Family Finder Tests

Me Wife

Son2 Son 3 Dau 1 Dau 2Son1

FIL MILMom

gdau1

gson1

gson2

gson3

Page 8: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Paper Trail

Page 9: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

YDNA

Page 10: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

MTDNA

Page 11: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

All Lines

Page 12: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Two Sides

Page 13: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

46 chromosomes

Page 14: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

2 Of You

Page 15: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

2 Lines

PATERNAL MATERNAL

Page 16: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Paired DNA

Haploid Haploid

Diploid

Page 17: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

22 Pairs of Autosomes2 Sex Chromosomes

46 TOTAL

Page 18: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

A Pair of Autosomes (1-22)You

Page 19: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

A Pair of Autosomes (1-22)You

Page 20: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

One Person – Two Sides

Paternal Maternal

Page 21: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Two Sides

Page 22: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Two Sides – Every Person

Page 23: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Two Sides

PaternalChromosomes 1-22

MaternalChromosomes 1-22

GF GFGM GM

MOTHERFATHER

CHILD

Page 24: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Are They Related If Segments Overlap on The Same Map?

Answer - Depends Upon Lineages

Page 25: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Two Lineages- One Map

Paternal Grandmother&

Maternal Grandmother

Page 26: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Two Lines - One MapThese Overlaps Are From

DIFFERENT Sides

CHILD

Page 27: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

One Lineage– One Map

Maternal Grandmotherand

Maternal Great Grandmother

Page 28: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

One Line (Twice) - One MapThese Overlaps Are From

SAME Sides

CHILD

Page 29: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Daughter’s Share with Distant Cousin

Page 30: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Daughter’s Share with Distant Cousin = 1 Paternal Segment and 1 maternal Segment

Paternal

Maternal

WR-kit

Page 31: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Which Line is this Match?

Answer = Either Line

Page 32: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Inheritance

Page 33: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

1 Full Glass = 50% of 2 Full Glasses

Page 34: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

1 Full Glass = 50% of 2 Full Glasses

Page 35: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

1 Full Glass = 50% of 2 Full Glasses

Page 36: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

50% 50%

Inheritance

2

1

Page 37: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

50% Inheritance

Page 38: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Where’s the 50% On The Map?

Answer – It is the Map

Page 39: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

CHILD

50% Inheritance – 1:2

2 Lines

1 Line

MOTHER

Page 40: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Parent/Child Map

Line 1 Line 2

Actual:Composite Of Parent’s Lines

Parent – Paternal and Maternal

Page 41: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Mother-Child Phased MAPChild’s Maternal to Mother’s Lines

Page 42: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Mother-Child Composite MAPChild’s Maternal to Mother’s Lines

Page 43: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

YOU

50%50%

Page 44: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

To Both Parents

Page 45: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Child – Mother Mapping

Mother’s Paternal

Mother’s Maternal

Page 46: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Jump a Generation to Filter

Mother’s Paternal

Mother’s Maternal

Page 47: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

To Both Grandparents

Page 48: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

50% MeansEach Generation Reduces Share

Page 49: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Mother to Child

Page 50: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Grandmother to Child

Page 51: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Great-Grandmother to Child

Page 52: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Each Generation Has Less Chancesof Matching

Relation Likelihood of a Match %DNA Shared

1st Cousin 100% 7% - 13%

2nd Cousin >99% 3% - 5%

3rd Cousin >90% .3% - 2%

4th Cousin 50% <1%

5th Cousin 10% sometimes none detectable

6th Cousin <2% often none detectable

Page 53: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

What If?50% Less Each Generation

Numbers Do Not Account for Variations

Generations centiMorgans

0 7,768.0

1 3,884.0

2 1,942.0

3 971.0

4 485.5

5 242.8

6 121.4

7 60.7

8 30.3

9 15.2

10 7.6

Page 54: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

More Relatives On Some BranchesAlso Affect Distant Matches

Cheaper by the Dozen 2

Page 55: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Variation

Page 56: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

1 Full Glass = 50% 2 Full Glasses

Page 57: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

1 Full Glass = 50% of 2 Full Glasses

Page 58: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

1 Full Glass = 50% of 2 Full Glasses

Variation

Page 59: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

1 Full Glass = 50% of 2 Full Glasses

Variation

Page 60: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

2/3 and 1/3 Variation

Page 61: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Meiosis – Combining 2 Lines to 1

Page 62: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Meiosis – Combining 2 Lines to 1CROSS-OVER

RESPONSIBLE FOR VARIATION

Page 63: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Cross-Over

Page 64: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Cross-Over Locations

Grandson to Paternal Grandparents

Page 65: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

2 Became 1 – Next Gen Down

Son

Grandson

My Wife = ORANGEMy Ancestry = BLUE

Page 66: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Variation In Siblings

Page 67: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Two Lines (Paternal/Maternal)Variations Affect Distant Matches Both Sides

Page 68: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

SON 1 Maternal

Page 69: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

SON 2 Maternal

Page 70: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

SON 3 Maternal

Page 71: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

DAU 1 Maternal

Page 72: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

DAU 2 Maternal

Page 73: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Mom’s 5th cousin to Us…

Page 74: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

5th Cousin’s Kit

Page 75: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

My Mother’s Kit

Page 76: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

gson3

gson2

gson1

gdau1

gfather

gmother

4 Paternal Grandchildren

25% Location

Page 77: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

I Don’t See All My Cousins, Is My Tree Wrong?

Answer – Not All Cousins on Paper, Match Genetically

Page 78: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

http://www.genetic-inference.co.uk/blog/2009/11/how-many-ancestors-share-our-dna/

Page 79: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Not All Lines Mix at Crossover

Page 80: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

X DNA(no crossover this grandchild)

Page 81: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Cross-Over Not Proportional

Gen 1

Gen 2

Gen 3

Gen 4

Page 82: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Cross-Over Not Proportional

Gen 1

Gen 2

Gen 3

Gen 4

Page 83: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Example of Persistence

To LEC kit

Mom

Me

Son1

GSon1

Page 84: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Recombination, parent-child trios(Autism Genetic Research Exchange)

Page 85: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Crossover Hot Spots

Chromosome 1 crossover locations of my five children, their maternal side

Page 86: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Full Siblings

Page 87: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Sisters

Composite Result of Share

Page 88: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Full Sibling Matches Involve 4 Lines (4 Grandparents)

Father Mother

Sibling Sibling

Page 89: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Sisters

Daughter 1 Paternal

Daughter 2 Paternal

Daughter 1 Maternal

Daughter 2 Maternal

Page 90: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Sisters

Page 91: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Sisters

Page 92: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

SistersFULL

HALF

FULL FULL

HALF HALF

Page 93: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Sisters

The Map is Composite (two lines combined into one color)

Page 94: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Phased ResultsSon1 to Dau1 Comparison

Page 95: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Phased ResultsSon1 to Dau1 Comparison

Page 96: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

courtesy of www.gedmatch.com

GREEN/BLUE = FULL IDENTICAL

YELLOW/BLUE = HALF IDENTICAL

Full Siblings

Page 97: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

courtesy of www.gedmatch.com

Half Siblings

GREEN/BLUE = FULL IDENTICAL

YELLOW/BLUE = HALF IDENTICAL

Page 98: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Phased ResultsSon1 to Dau1 Comparison

CentiMorgans

HALF IBD 3587.10

FULL IBD 7174.20

Paternal 2154.20

Maternal 1819.80

Total 3974.00

Percentage 55.39%

Gedmatch HIR

Gedmatch FIR

Page 99: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Family Finder is a SHARING test

How Much In-Common Do You Share With Another

This is Especially True for Full Siblings Since They Share 4 Lines of DNA

Page 100: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

What if? Can’t Test a Parent

Page 101: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Using 1 Sibling to Build a Parent’s Map

Page 102: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Using 2 Siblings to Build a Parent’s Map

Page 103: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Using 3 Siblings to Build a Parent’s Map

Page 104: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Using 4 Siblings to Build a Parent’s Map

Page 105: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Using 5 Siblings to Build a Parent’s Map

Page 106: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

COUSINS

Page 107: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

COUSINS

SIBLINGS

COUSINS

Page 108: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

COUSINS

Variation

VariationVariation

R

RR

Page 109: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

COUSINS

805cM

2439cM

Page 110: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Cousins Share - Siblings’ DNA

Page 111: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Siblings’ In-Common DNA

2 Siblings

R

Page 112: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Siblings’ In-Common DNA

2 Siblings

R R

R

Page 113: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Siblings’ In-Common DNA

2 Siblings

R R

R R

R

Page 114: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Siblings’ In-Common DNA

2 Siblings

R R

R R

R R

R

Page 115: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

2 Matches, Not 3-Way

B

A C

Page 116: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

3-Way Matches

B

A C

Page 117: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

SIBLINGS

Page 118: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

NEPHEW

Page 119: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

COUSINS

Page 120: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Different Views – My View

Page 121: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Different Views – Their View

Page 122: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Mapping Descendents(reverse engineering branches)

Page 123: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Mapping AncestryMy Maternal Grandparents

Page 124: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

wmd

RECOMBINED

RECOMBINED

Cousins - 2 Generations

Page 125: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Son 1

PATERNAL SIDE MATERNAL SIDE

Page 126: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

GSon 1

PATERNAL SIDE

Page 127: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Son 2

PATERNAL SIDE MATERNAL SIDE

Page 128: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

GSon 3

Page 129: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

PATERNAL SIDE (Fathers are Siblings)

Cousins = 4 Lines Compared to 4 Lines

GSon 3GSon 1

Page 130: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

PATERNAL SIDE (Fathers are Siblings)

Page 131: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

FIRST COUSINS

WD

CD

Page 132: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

In-Common Segments

WD

CD

Page 133: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

~2600cM

~800cM

~300cM

Full Siblings

1st Cousins

2nd Cousins

Examples (Approximate) Sum cMs

Page 134: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

~2600cM (2) Full Siblings

~1400cM

~450cM

Doubled Cousins Raise Sums Up

Half Siblings

1st Once Removed

Page 135: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

~1400cM

~450cM

Half Sib Descendants Drop Sums Down

Half Siblings

1st Once Removed

2nd or 3rd

Cousins~100-200cM

Page 136: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Predicating

Close and Immediate

Distant

Speculative

Sum of cM

Segment Sizes and Probabilities

Page 137: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Confirmed

My Kit Data, Other Results May Vary

Close and Immediate

Distant

Speculative

Page 138: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Closing

• We Have Two Sides (paternal, maternal)

• We Inherit 50% From Each Side

• We Inherit Each Line By Recombination

• Recombination Produces Variation of Ancestry

• Siblings and Cousins share DNA from both sides (composited together like a pool)

Page 139: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Questions

Page 140: Autosomal DNA Testing · FTDNA Family Finder Family Finder uses autosomal DNA (inherited from both the mother and father, four grandparents, eight great-grandparents, etc.) to provide

Web InfoREFERENCES

http://www.familytreedna.com/faq/answers.aspx?id=17

http://www.genetic-inference.co.uk/blog/2009/11/how-many-ancestors-share-our-dna/

http://ongenetics.blogspot.com/2011/02/genetic-genealogy-and-single-segment.html

http://www.ncbi.nlm.nih.gov

SITES AND BLOGS

http://www.dna-testing-adviser.com

http://www.yourgeneticgenealogist.com

http://www.thegeneticgenealogist.com

http://dna-explained.com

http://www.adoptiondna.blogspot.com

http://genealem-geneticgenealogy.blogspot.com

http://www.gedmatch.com

http://www.dnagedcom.com

http://www.dnaadoption.com

http://www.math.mun.ca/~dapike/FF23utils/index.html

http://www.familytreedna.com/faq/answers.aspx?id=17
http://www.genetic-inference.co.uk/blog/2009/11/how-many-ancestors-share-our-dna/
http://ongenetics.blogspot.com/2011/02/genetic-genealogy-and-single-segment.html
http://www.ncbi.nlm.nih.gov
http://www.dna-testing-adviser.com
http://www.yourgeneticgenealogist.com
http://www.thegeneticgenealogist.com
http://dna-explained.com
http://www.adoptiondna.blogspot.com
http://genealem-geneticgenealogy.blogspot.com
http://www.gedmatch.com
http://www.dnagedcom.com
http://www.dnaadoption.com
http://www.math.mun.ca/~dapike/FF23utils/index.html

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autosomal trisomies

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Dear grandparents,

Dear grandparents,

Autosomal Disorders

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