Which of the following is not likely to occur after a gene duplication event?
A) One gene retains its function, while the other becomes a pseudogene.
B) Both genes retain their function, but they are expressed in different patterns or tissues.
C) Both genes become pseudogenes.
D) One gene retains its function, while the other evolves to have a new function.
E) All of the above are likely to occur.

Question

Quizplus · Accepted Answer

It is unlikely for both genes to become pseudogenes after duplication, as this would result in a loss of function without any evolutionary advantage. Typically, at least one gene retains its function.

Which of the Following Is Not Likely to Occur After