A Genetic Study Conducted Over Multiple Generations Found That the Frequency

question 37

Multiple Choice

A genetic study conducted over multiple generations found that the frequency of genotypes in the first generation were,AA: 0.36,Aa: 0.48,aa: 0.16.In the second generation,genotype frequencies shifted to AA: 0.16,Aa: 0.48,aa: 0.36.According to Hardy-Weinberg equilibrium,we can assume:

• A)random mating has altered gene frequencies
• B)gene flow has possibly shifted the gene frequencies
• C)mating in this population must be nonrandom mating
• D)both B and C

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Definitions:

Germ Layer

One of the primary layers of cells (ectoderm, mesoderm, or endoderm) in the early embryo that will differentiate into various tissues and organs.

Pituitary Gland

a small, pea-sized gland located at the base of the brain, responsible for controlling important functions in the body through the release of hormones.

Ectoderm

The external layer of cells or tissues in an embryo during its initial stages of growth, which develops into the skin's outer layer, the brain, and the nervous system.

Environmental Factors

External elements including temperature, water, sunlight, and soil that affect living organisms and the functioning of ecosystems.