Evolution and Genetics

Practice Questions

AP Biology › Evolution and Genetics

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1

Fill in the blanks with the correct answers.

The sun emits thermal neutrons that can cause __________ to deprotonate into the radioactive isotope __________.

2

The sum of all genetic alleles in a population is the __________.

3

Which of the following concepts was not discovered by the scientist Gregor Mendel?

4

Which is true of a pea plant with rounded pods and alleles Rr?

5

Which of the following concepts was not discovered by the scientist Gregor Mendel?

6

The sum of all genetic alleles in a population is the __________.

7

If four percent of the population is homozygous recessive for the trait that carries dimples (recessive), what is the fractional frequency of the dominant allele?

8

A population of snails is originally in Hardy-Weinberg equilibrium. The snails come in two different colors: red, the dominant phenotype, and white, the recessive phenotype. The original population has a dominant allele frequency of and a recessive allele frequency of . A new predator is introduced to the habitat that is particularly fond of the red snails. After a few years the dominant allele frequency has been reduced to .

What is the recessive allele frequency after the introduction of this predator?

9

Which of the following is a Hardy-Weinberg assumption?

10

A population of snails is in Hardy-Weinberg equilibrium. The snails come in two different colors: red, the dominant phenotype, and white, the recessive phenotype. There are sixteen homozygous dominant, forty-eight heterozygous, and thirty-six homozygous recessive snails.

What are the allele frequencies for this population?

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