Which of the Following Treatments Is Most Likely to Prevent

question 36

Multiple Choice

Which of the following treatments is most likely to prevent pair-bonding in a population of prairie voles?

• A) disrupting the normal mating system by introducing meadow voles to a prairie vole population
• B) administering a drug that inhibits the vasopressin receptor gene
• C) dying the coat color from brown to blond in either male or female prairie voles
• D) allowing the population size to reach critically low levels

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Definitions:

Sex-linked Recessive Disorders

Genetic disorders that are carried on the sex chromosomes, typically the X chromosome, and are expressed in the phenotype only when a dominant allele is not present.

Down Syndrome

A genetic disorder caused by the presence of an extra chromosome 21, characterized by physical growth delays, characteristic facial features, and mild to moderate intellectual disability.

Down Syndrome

A genetic disorder caused by the presence of all or part of a third copy of chromosome 21, characterized by distinct physical features and intellectual disability.

Dominant Inheritance

A pattern of inheritance where a single copy of a dominant allele on one chromosome is enough to produce the phenotype.