Which experiment most closely confirms the linkage between DNA → a gene → a gene product → the behavior that results from that product?

A) experiments with the inland and coastal garter snakes and their food preferences
B) experiments with identical twins separated at birth
C) experiments with laughing gull chicks and their pecking behavior to solicit food from the mother gull
D) experiments with white-crowned sparrows and the critical period for learning bird songs
E) experiments with Aplysia snails and their egg-laying behavior

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Hachikaru Otunyenim · Accepted Answer

Final Answer : E, Explanation :  The experiments with Aplysia snails directly link DNA to a specific gene, then to a gene product, and finally to a specific behavior (egg-laying behavior) resulting from that product. This sequence of connections from DNA to behavior is most explicitly demonstrated in these experiments, as they involve manipulating specific genes to observe changes in a physiological process that directly affects behavior.

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