Pedigrees

Front

What shape represents a male in a pedigree?

Back

Square

Front

How many people are carriers of the trait in the second generation of a pedigree if there are 3 carriers?

Back

3

Front

How many alleles does a person carry for a trait?

Back

2

Front

Which individual in the first generation is a carrier if I-1 is not and I-2 is?

Back

I-2

Front

If a pedigree shows a recessive disorder, what MUST the genotype of an affected individual be?

Back

hh

Front

What shape represents a female in a pedigree?

Back

Circle

Front

What is a carrier in genetics?

Back

A person who has one copy of a recessive allele and can pass it on to their children without showing symptoms of the disorder.

Front

What does it mean if an individual is homozygous for a trait?

Back

They have two identical alleles for that trait.

Front

What does it mean if an individual is heterozygous for a trait?

Back

They have two different alleles for that trait.

Front

In a pedigree, what does a filled shape represent?

Back

An individual who expresses the trait or disorder.