Genetics : Pedigrees

This pedigree shows a trait that is most likely

• autosomal dominant.

• sex-linked.

• autosomal recessive.

The mom in generation 1

• has the disorder.

• is homozygous for the trait.

• is a carrier.

This is an autosomal recessive disorder. The parents in generation one must

• have the disease.

• be homozygous.

• be heterozygous.

• be related.

In generation 2 which individual died?

• 1

• 2

• 3

• 4

This is a __ trait.

• autosomal recessive.

• sex-linked.

• autosomal dominant.

If the shape is not filled in, the individual

• has the disorder.

• is homozygous dominant.

• is heterozygous.

• is homozygous recessive.

This trait is

• autosomal recessive.

• sex-linked.

• autosomal dominant.

If the person is filled in

• they don't have the disorder.

• they are homozygous dominant.

• they are heterozygous.

• they are homozygous recessive.

Generation 2 individual 3 is

• male.

• female.

Generation 1 individual 1's relationship to generation 2 individual 3 is

• number 3's mom.

• number 3's dad.

• number 3's brother.

• number 3's uncle.