Why Is the Incidence of an Extra Y Chromosome in the General

question 10

Multiple Choice

Why is the incidence of an extra Y chromosome in the general population unknown?

• A)The phenotype is that of a normal male.
• B)Most conceptions with 47,XYY are spontaneously aborted.
• C)The life expectancy for males with 47,XYY is often short.
• D)The majority of males with this sex chromosome abnormality are institutionalized.

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Definitions:

Pseudopenis

A clitoris that is significantly enlarged to resemble a penis, found in certain species such as the spotted hyena.

Non-adaptive

Referring to traits or behaviors that do not provide a survival or reproductive advantage to an organism.

Variable Life Insurance

A type of insurance policy that does not allow for the premium or minimum coverage on one’s life to change but allows one to switch the savings from among money markets or various forms of stock.

Universal Life Insurance

A type of insurance policy that is flexible and allows one to raise or reduce premiums and the amount of coverage on one’s life.