Benchmark 9 Review

Front

What does genotype refer to?

Back

The possible combination of alleles in a gene.

Front

Which of the following is homozygous dominant?

Back

BB

Front

What is the ratio of homozygous dominant to heterozygous to homozygous recessive offspring called?

Back

Genotypic Ratio.

Front

What does it mean to be homozygous?

Back

Having two of the same genes for the trait (sometimes called purebred).

Front

What are the possible genotypes when a homozygous dominant dog (BB) is crossed with a heterozygous dog (Bb)?

Back

50% BB and 50% Bb.

Front

What is the definition of homozygous recessive?

Back

Having two identical alleles for a trait that are both recessive (e.g., bb).

Front

What is a heterozygous genotype?

Back

Having two different alleles for a trait (e.g., Bb).

Front

What is a monohybrid cross?

Back

A genetic cross between individuals that involves one pair of contrasting traits.

Front

What does phenotype refer to?

Back

The physical expression or characteristics of a genotype.

Front

What is the phenotypic ratio in a monohybrid cross?

Back

The ratio of different phenotypes in the offspring.