Pedigrees

Front

What does a vertical line coming down from a square and circle that are connected by a horizontal line indicate?

Back

The children

Front

What is the genotype of the shaded circle in the first generation?

Back

aa

Front

What is the relationship between person I-1 and person III-3?

Back

grandfather and grandson

Front

What are the genotypes of the white squares in the second generation?

Back

Aa

Front

Is this trait (the shaded individuals) dominant or recessive?

Back

recessive

Front

What does a square represent in a pedigree chart?

Back

A male

Front

What does a circle represent in a pedigree chart?

Back

A female

Front

What does a shaded shape indicate in a pedigree chart?

Back

An individual expressing the trait

Front

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

Back

Marriage (or mating)

Front

What is a pedigree chart used for?

Back

To track the inheritance of traits across generations