Microbial Evolutionary Biologists Have Provided Evidence Against Lamarkian Evolution by Demonstrating

question 38

Essay

Microbial evolutionary biologists have provided evidence against Lamarkian evolution by demonstrating that genetic mutations arise in the absence of selection,rather than being a response to selection.Describe one method for distinguishing between spontaneous and induced mutations (be sure to include the expected results)

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Definitions:

Desensitization

The diminished emotional responsiveness to a negative, aversive, or positive stimulus after repeated exposure to it.

Modeling

A method of learning that involves observing and replicating others' behaviors, attitudes, or emotional expressions.

Classical Conditioning

A learning process that occurs when two stimuli are repeatedly paired; a response that is at first elicited by the second stimulus is eventually elicited by the first stimulus alone.

Operant Conditioning

An educational method where the intensity of an action is altered by rewards or penalties.