Quiz 5 - Topic 5: Population Genetics

Gene flow is a concept best used to describe an exchange between …

• species.

• populations.

• chromosomes.

• males and females.

Which of the following is NOT a requirement for maintaining the Hardy-Weinberg equilibrium?

• An increasing mutation rate

• Random mating

• Large population size

• No migration

If a population experiences no migration, is very large, has no mutations, has random mating, and there is no selection, which of the following would you predict?

• The population will evolve, but much more slowly than normal.

• The makeup of the population's gene pool will remain virtually the same as long as these conditions hold.

• The composition of the population's gene pool will change slowly in a predictable manner.

• Dominant alleles in the population's gene pool will slowly increase in frequency while recessive alleles will decrease.

Which of the following genotypes describes a frequency of homozygous?

• p²

• 2pq

• q²

• both A and B

In a Hardy-Weinberg population, the frequency of the a allele is 0.4. What is the frequency of individuals with Aa genotype?

• 0.16

• 0.48

• 0.20

• 0.60

Tags

NGSS.HS-LS4-3

A butterfly population has a rare homozygous recessive form hh that occurs at a frequency of 0.04.

The population is in Hardy-Weinberg equilibrium for the trait.

What is the frequency of the homozygous dominant form?

• 0.02

• 0.98

• 0.64

• 0.32

Tags

NGSS.HS-LS4-3

NGSS.HS-LS2-2

In a population that is in Hardy-Weinberg equilibrium, the frequency of the homozygous recessive genotype is 0.09. What is the frequency of individuals that are homozygous for the dominant allele?

• 0.7

• 0.42

• 0.21

• 0.49

Tags

NGSS.HS-LS3-3

In a population of wildflowers, the frequency of the allele for red flowers was 0.8. What was the frequency of the white allele, the only other allele for flower colour?

• 0.8

• 0.6

• 0.4

• 0.2

Tags

NGSS.HS-LS3-3

NGSS.HS-LS2-2

The frequency of a dominant allele is 0.6. What is the frequency of its recessive allele?

• 0.3

• 0.12

• 0.4

• 0.16

Tags

NGSS.HS-LS3-3

Use the following information to answer the questions below.

Albinism is a hereditary disease due to the absence of the skin pigment melanin. The allele for albinism is recessive to the allele for normal pigmentation. One person in 10,000 is an albino.

What is the frequency of the dominant allele?

• 0.01

• 0.10

• 0.09

• 0.99

Tags

NGSS.HS-LS3-3