Use the Following Information to Answer the Questions Below

question 74

Multiple Choice

Use the following information to answer the questions below.
A large population of laboratory animals has been allowed to breed randomly for a number of generations. After several generations, 25% of the animals display a recessive trait (aa) , the same percentage as at the beginning of the breeding program. The rest of the animals show the dominant phenotype, with heterozygotes indistinguishable from the homozygous dominants.
-In a Hardy-Weinberg population with two alleles, A and a, that are in equilibrium, the frequency of allele a is 0.2. What is the frequency of individuals with Aa genotype?

• A)0.20
• B)0.32
• C)0.42
• D)0.80
• E)Genotype frequency cannot be determined from the information provided.

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Definitions:

Present Value

The present worth of a future amount of money or series of cash flows when discounted at a certain rate of return.

Salvage Received

Salvage received refers to the amount gained or recovered from the sale or disposal of an asset after it is no longer useful or at the end of its useful life.

Simple Rate

A basic or straightforward interest rate that is applied to an amount without compounding over a time period.

Investment

The allocation of resources, such as capital or time, with the expectation of generating a future return.