For changes that occur in response to environmental conditions, changes in gene expression are most likely due to ____, while changes in DNA sequence are more likely due to ____.
A) evolutionary adaptation; acclimatization
B) evolutionary adaptation; acclimation
C) evolutionary adaptation; biorhythms
D) acclimatization; evolutionary adaptation
E) acclimation; evolutionary adaptation

Question

Quizplus · Accepted Answer

Changes in gene expression in response to environmental conditions without altering the DNA sequence are typically due to acclimatization, which is a short-term, reversible process. Changes in DNA sequence that affect gene expression and are passed on to future generations are a result of evolutionary adaptation, a long-term process driven by natural selection.

For Changes That Occur in Response to Environmental Conditions, Changes