AP Biology Unit 5 Review

Front

What event restores the diploid chromosome number after meiosis?

Back

Fertilization.

Front

What is the probability of having a daughter if a couple has six daughters and has a seventh child?

Back

1/2.

Front

If a homozygous yellow llama is crossed with a homozygous brown llama, what color will the offspring be?

Back

Grey coats.

Front

What percentage of offspring from two gray-coated llamas will have brown coats?

Back

25%.

Front

What does it mean if a cat is calico?

Back

It has both black and orange fur, and only female cats can be calico.

Front

What is the inheritance pattern of red-green colorblindness in humans?

Back

It is an X-linked recessive trait.

Front

If a son has red-green colorblindness, what can be said about his mother?

Back

She is a carrier for red-green colorblindness.

Front

What is codominance in genetics?

Back

A situation where both alleles in a heterozygote are fully expressed.

Front

What is the significance of the X chromosome in female cats with calico fur?

Back

The gene for black and orange fur is located on the X chromosome.

Front

What is the expected phenotype ratio in the offspring of a monohybrid cross?

Back

3:1 for dominant to recessive traits.