Advanced Genetics

Front

What is the phenotype of a guinea pig with the genotype bbss?

Back

White hair, long hair

Front

What does an individual with XX chromosomes represent?

Back

Female

Front

What is nondisjunction?

Back

The failure of chromosomes to properly separate during the process of Meiosis.

Front

What type of inheritance is demonstrated when a red lily crossed with a yellow lily produces heterozygous orange lily flowers?

Back

Incomplete Dominance

Front

True or False: Sex linked traits are traits whose genes are found on the 23rd pair of chromosomes, the sex chromosomes (X or Y).

Back

True

Front

Define dominant allele.

Back

An allele that expresses its phenotype even in the presence of a recessive allele.

Front

Define recessive allele.

Back

An allele that only expresses its phenotype when two copies are present.

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup, while phenotype refers to the observable traits.

Front

What is codominance?

Back

A genetic scenario where both alleles in a heterozygote are fully expressed.

Front

What is incomplete dominance?

Back

A genetic scenario where the phenotype of a heterozygote is intermediate between the phenotypes of the two homozygotes.