How Might Epigenetics Explain Some of the Differences Between Highly

question 4

Essay

How might epigenetics explain some of the differences between highly related species-species which seem to be genetically more similar to each other than their phenotypes display?

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Definitions:

Fixed-Ratio

In the context of behavioral psychology, a reinforcement schedule that rewards a response only after a specified number of responses.

Variable-Ratio

A reinforcement schedule in operant conditioning where a response is reinforced after an unpredictable number of responses.

Fixed-Interval

A schedule of reinforcement where the first response is rewarded only after a specified amount of time has elapsed.

Variable-Interval

A schedule of reinforcement where a response is rewarded after an unpredictable amount of time has passed.