Suppose you have identified a type of lizard that seems to have acquired a mutation in which hindlimbs are absent. Which gene, also responsible for the loss of limbs in snakes, may be mutated in this animal?
A) bicoid
B) MONOPTEROS
C) PHANTASTICA
D) cytoplasmic determinants
E) Sonic hedgehog

Question

Quizplus · Accepted Answer

Sonic hedgehog is responsible for limb development in vertebrates, and its loss of function can result in limblessness or limb reduction. This gene is mutated in snakes, and it is possible that this same gene has been mutated in the identified type of lizard with absent hindlimbs.

Suppose You Have Identified a Type of Lizard That Seems