PedigreesPedigreesBy: Sara Rogers

About PedigreesAbout Pedigrees

Pedigrees are charts that show the occurrence of a particular gene or phenotype in a family.

SymbolsSymbols

Unaffected male -

Affected male -

Unaffected female -

Affected female -

Marriage -

SymbolsSymbolsOffspring -

Non-identical twins -

Identical twins -

Carrier -

Question 1Question 1

What is the symbol for a carrier?

Question 2Question 2

What is the symbol for identical twins?

Question 3Question 3

Pedigrees show the occurrence of a particular __________?

Question 4Question 4

What is the symbol for marriage?

AnswersAnswers1.

2.

3. Gene or phenotype

4.

CitationsCitationsGoogle images

http://en.wikipedia.org/wiki/Pedigree_chartp