Lens crystallins form the transparent lens of the eye. In guinea pigs, lens crystallins also function as alcohol dehydrogenase. What is this an example of?
A) antagonistic pleiotropy
B) gene duplication
C) a trade-off
D) gene sharing

Question

Quizplus · Accepted Answer

Gene sharing occurs when a single gene product performs multiple distinct functions, as seen with lens crystallins in guinea pigs serving both structural roles in the eye and enzymatic roles in alcohol metabolism.

Lens Crystallins Form the Transparent Lens of the Eye