Calico Cats Have Splotches of Colors of Fur Arrayed on Them

question 8

Multiple Choice

 Calico cats have splotches of colors of fur arrayed on them, with the color being determined by different alleles of an X chromosome gene. Calico cats

• A) can be male or female.
• B) are almost always male, because the calico condition is sex-linked.
• C) are always female, because the calico condition results from x-inactivation.
• D) are the result of spontaneous mutations that do not affect the sex chromosomes.

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Definitions:

Two-tail Test

A statistical hypothesis test in which the area of interest is on both sides of the distribution, allowing for testing of both extreme high and low results.

Population Means

The average value of a particular characteristic for an entire population.

One-tail Area

Refers to the area under the probability distribution curve to either the left or right of a specified value, used in hypothesis testing to assess one-sided significance.

Equal-variances Test

A statistical procedure used to assess whether the variances of two populations are equal, as assumed by certain parametric tests.