Differences in Mating Patterns of Montane and Prairie Voles (Promiscuous

question 179

Multiple Choice

Differences in mating patterns of montane and prairie voles (promiscuous and monogamous, respectively) can be attributed to expression of a specific hormone receptor in certain cells of the brain. If researchers inserted this receptor's gene (and regulatory regions) so it was expressed in appropriate cells of the montane vole, which of the following would MOST likely occur?

• A)Montane voles would remain promiscuous, because they express a gene for promiscuity.
• B)Montane voles would become monogamous, because they would be able to receive hormone signals in the same way as prairie voles.
• C)Montane voles would be promiscuous some of the time, and monogamous the rest of the time depending on the female vole.
• D)Montane voles would not mate because the monogamy gene would cancel out the promiscuity gene.

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