In a Series of Studies by Meaney and Colleagues, Rat

question 68

Multiple Choice

In a series of studies by Meaney and colleagues, rat pups are randomly assigned to be raised by surrogate mothers who spend a lot of time licking and grooming (high LG) them or surrogate mothers who spend little time engaging in this behavior (low GH) . Rat pups raised by high LG surrogate 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:

Time Increment

A specified increase in time, used in scheduling, simulations, or time-based calculations.

Milliseconds

A unit of time equal to one-thousandth of a second, commonly used to measure durations that require high precision, such as response times in computers.

True To False Transition

refers to the change of a digital signal or condition from a true (high, active) state to a false (low, inactive) state.