In a Series of Studies by Meaney and Colleagues,rat Pups

question 23

Multiple Choice

In a series of studies by Meaney and colleagues,rat pups were randomly assigned to be raised by surrogate mothers who spent a lot of time licking and grooming (high LG) them or surrogate mothers who spent little time engaging in this behavior (low LG) .Rat pups raised by high-LG surrogates grow up to be _____ fearful in novel situations,which can be attributed to a(n) _____ in DNA methylation.

• A)less;increase
• B)less;decrease
• C)more;increase
• D)more;decrease

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Definitions:

Hypothesis

Testable explanation of a natural phenomenon.

Natural Phenomenon

A naturally occurring event or occurrence that can be observed in the physical world, not caused by humans.

Conclusive Description

Definitive or decisive description that leaves no room for doubt or questions.

Nutrients

Materials that supply the necessary nutrients for the development and sustenance of living organisms.