Flashcard: Pedigrees

Front

What shape represents a male in a pedigree?

Back

Square

Front

What does a filled-in square represent in a pedigree?

Back

Affected Male

Front

How many generations can be shown in a pedigree?

Back

Multiple generations, typically 3-4 are common.

Front

What does a filled-in circle represent in a pedigree?

Back

Affected Female

Front

What does a horizontal line between a square and a circle indicate?

Back

They are married ('together').

Front

What does a vertical line connecting a square and a circle represent?

Back

They are parents of the offspring.

Front

What does a circle represent in a pedigree?

Back

Female

Front

How can you identify carriers of a trait in a pedigree?

Back

Carriers are typically represented by unfilled shapes that are connected to affected individuals.

Front

What is the purpose of a pedigree chart?

Back

To track the inheritance of traits across generations.

Front

What does a double line between two shapes indicate in a pedigree?

Back

Consanguinity (marriage between relatives).