Inheritance

Front

What is the genotype of two black mice that produce both black and brown offspring?

Back

Bb x Bb

Front

What are recessive alleles represented by?

Back

Lowercase letters (e.g., b)

Front

How are individuals III-2 and II-4 related in a pedigree chart?

Back

Uncle and Niece

Front

If a man with red-green colorblindness and his carrier wife have a colorblind son, what is the probability their next son will also be colorblind?

Back

50% chance

Front

What is the phenotypic ratio of offspring from a heterozygous black mouse (Bb) and a white mouse (bb)?

Back

2 Black: 2 White

Front

Define dominant allele.

Back

An allele that expresses its trait even when paired with a recessive allele.

Front

Define recessive allele.

Back

An allele that only expresses its trait when paired with another recessive allele.

Front

What is a phenotype?

Back

The observable physical characteristics of an organism.

Front

What is a genotype?

Back

The genetic makeup of an organism, represented by alleles.

Front

What does it mean for an allele to be homozygous?

Back

Having two identical alleles for a particular gene (e.g., BB or bb).