Paralogs may
A)have additive effects, increasing the amount of gene expression.
B)have new effects.
C)divide a function with the parental gene.
D)All of the above
E)None of the above

Question

Quizplus · Accepted Answer

Paralogs are genes that have arisen by duplication within a genome, and they can have a variety of outcomes. They may have additive effects, increasing the amount of gene expression in the organism, which would be covered by option A. Paralogs may also have new effects, due to the acquisition of new functions following gene duplication, so option B is also correct. Finally, paralogs may divide a function with the parental gene, leading to subfunctionalization, which means each copy maintains only a portion of the original function, as covered by option C. Therefore, option D is the best choice as it covers all possible outcomes.

Paralogs May