Unit 7 Genetics Test Review

Front

What is the expected phenotypic ratio resulting from a monohybrid cross?

Back

3:1

Front

If an individual possesses two recessive alleles for the same trait, the individual is said to be ___

Back

Homozygous for the trait

Front

What allows for multiple variations in blood type phenotypes?

Back

It has multiple alleles

Front

What possible allele combinations could a parent with genotype BbRr produce?

Back

BR, Br, br, br

Front

What does Mendel’s law of segregation state?

Back

The two alleles for a trait separate when gametes are formed

Front

Define homozygous.

Back

An individual with two identical alleles for a trait.

Front

Define heterozygous.

Back

An individual with two different alleles for a trait.

Front

What is a phenotype?

Back

The observable characteristics of an organism.

Front

What is a genotype?

Back

The genetic makeup of an organism.

Front

What is a monohybrid cross?

Back

A genetic cross between individuals that differ in one trait.