A Population of Beetles Has a Mean Weight of 30

question 9

Multiple Choice

A population of beetles has a mean weight of 30 g.In a controlled,constant environment,individuals of 12 g are selected and allowed to interbreed,and their progeny have a mean weight of 21 g with a variance of 4.5 g².What is the additive variance in this experiment?

• A)0.50
• B)0.57
• C)0.70
• D)1.75
• E)2.25

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Definitions:

Limited Gene Pool

Refers to a small variety of genes in a population, which can lead to decreased genetic diversity and increased susceptibility to diseases or genetic abnormalities.

DNA Sequence

The precise order of nucleotides within a DNA molecule, which determines genetic information.

Neutral Changes

Genetic mutations that do not visibly affect the fitness of an organism.

Beneficial Changes

Alterations in an organism or environment that lead to positive outcomes, such as increased fitness, survival, or adaptation.