Some evolutionary biologists argue that changes in the regulation of genes rather than changes in the coding sequence are more likely to be involved in adaptation. Which of the following statements forms part of the basis for this argument?
A) Coding sequence changes are constrained because most genes perform multiple functions.
B) Regulatory mutations are more likely to occur than coding sequence mutations.
C) Regulatory changes likely affect all processes that a gene is involved in.
D) all of the above

Question

Quizplus · Accepted Answer

Changes in the coding sequence of genes are constrained by the multiple functions that most genes perform, making alterations in gene regulation a more plausible path for adaptation. This is because a change in the coding sequence could disrupt multiple essential functions, whereas regulatory changes can fine-tune gene expression without altering the gene's fundamental roles.

Some Evolutionary Biologists Argue That Changes in the Regulation of Genes