Incomplete Dominance & Co-Dominance

MEDELIAN GENETICS

MEDELIAN GENETICS

MEDELIAN GENETICS

NONMEDELIAN GENETICSNEITHER

THIRDBLEND / MIX

RR = Homozygous

R’R = Heterozygous(Creates THIRD Phenotype)

R’R’ = Homozygous

RR = RED R’R’ = WHITEPINKR R’=

HOMOZYGOUS HOMOZYGOUSHETEROZYGOUS

NONMEDELIAN GENETICS

RedWhitePink

RR = Red

R’R’ = White

RR’ = Pink

RR’ RR’

R R’

R

R’

R R

R

RR’

R’ R’ R’

Genotype:_____ _____ _____

Phenotype:______ ______ ______

RR RR’ R’R’

Red Pink White

1 (25%) 2 (50%) 1 (25%)

1 (25%) 1 (25%)2 (50%)

1 (25%) 2 (50%)

2 (50%)

1 (25%)

NONMEDELIAN GENETICS

BB = BLUE B’B’ = REDB B’ PURPLE=

BLUEREDPURPLE

BB = BLUEBB’ = PURPLEB’B’ = RED

BB’ B’B’

B B’

B’

B’

B B’

B B’

B’ B’

B’ B’

HOMOZYGOUS HOMOZYGOUSHETEROZYGOUS

Genotype:_____ _____ _____

Phenotype:______ ______ ______BLUE REDPURPLE

BB’ B’B’BB0 (0%) 2 (50%) 2 (50%)

0 (0%) 2 (50%) 2 (50%)

0 (0%) 2 (50%) 2 (50%)

2 (50%)

NONMEDELIAN GENETICS

• Incomplete Dominance Practice Problems

NONMEDELIAN GENETICSBOTH BOTH

CAPITAL

BB = HomozygousBW = HeterozygousWW = Homozygous

WW = White

HOMOZYGOUS

BB = Black

HOMOZYGOUS

Black & White B W =

HETEROZYGOUS

NONMEDELIAN GENETICS

BB = Black

HOMOZYGOUS

WW = White

HOMOZYGOUSHETEROZYGOUSB W = Black & White

WhiteBlackBlack & White

WW = WhiteBW = Black & WhiteBB = Black

BB BW

Genotype:_____ _____ _____

Phenotype:______ ______ ______

BB BW WW

Black Black & White White

B B

B

W

B

B B

BB

W

B

W2 (50%) 2 (50%) 0 (0%)

2 (50%) 2 (50%) 0 (0%)

2 (50%) 2 (50%) 0 (0%)0 (0%)

NONMEDELIAN GENETICS

PurpleOrangePurple & Orange

PP = PurplePO = Purple & Orange OO = Orange

PO PO

PHETEROZYGOUS

OO = OrangePP = Purple

HOMOZYGOUS HETEROZYGOUSO= Purple & Orange

P O

P P

PO

P

O OO

OP

Genotype:_____ _____ _____

Phenotype:______ ______ ______

PP PO OO

Purple Purple & Orange Orange

1 (25%) 2 (50%) 1 (25%)

1 (25%) 1 (25%)2 (50%)1 (25%) 1 (25%)

1 (25%)2 (50%)

NONMEDELIAN GENETICS

• Co-Dominance Practice Problems

(NON)MEDELIAN GENETICS

Complete dominance, Codominance, Incomplete

dominance

(NON)MEDELIAN GENETICS

Complete dominance, Codominance, Incomplete

dominance

NONMEDELIAN GENETICS

Complete dominance, Codominance, Incomplete

dominance

NONMEDELIAN GENETICS

Complete dominance, Codominance, Incomplete

dominance

(NON)MEDELIAN GENETICS

Complete dominance, Codominance, Incomplete

dominance

NONMEDELIAN GENETICS

Complete dominance, Codominance, Incomplete

dominance

NONMEDELIAN GENETICS

Complete dominance, Codominance, Incomplete

dominance

A red cow and a white cow have roan (spotted)

offspring.

NONMEDELIAN GENETICS

Complete dominance, Codominance, Incomplete

dominance

NONMEDELIAN GENETICS

Complete dominance, Codominance, Incomplete

dominance

A black mouse and a white

mouse have grey offspring in the F1 generation.

NONMEDELIAN GENETICS

Complete dominance, Codominance, Incomplete

dominance

A green pea plant and a yellow pea

plant have all green offspring.