The Graph Shows the Range of Variation Among Population Members

question 21

Multiple Choice

The graph shows the range of variation among population members for a trait determined by multiple genes. If this population were subject to stabilizing selection for several generations, which, if any, of the distributions shown would be most likely to result?

• A) a
• B) b
• C) c
• D) d
• E) None of the above; there would be no change.

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Definitions:

Heterozygous

Having two different alleles of a particular gene, one inherited from each parent.

Sex Chromosomes

Chromosomes involved in determining the sex of an organism, with human males typically having one X and one Y chromosome, and females having two X chromosomes.

X Chromosome

One of the two sex chromosomes, which plays a crucial role in determining genetic sex and can carry genes affecting various traits and conditions.

Y Chromosome

A sex chromosome found in males that is paired with an X chromosome and determines male biological characteristics.