Practice question

Question

From an original population P of a butterfly species, two experimental populations X and Y were established. In X, males and females were maintained in standard conditions, and females were allowed to mate and lay eggs. Only eggs from females laying small clutches, i.e., S eggs or fewer, were allowed to hatch and the rest were not utilized. In Y, males and females were maintained in standard conditions and females were allowed to mate and lay eggs. From each female, S eggs were randomly selected and allowed to hatch, and the rest were not utilized. After 20 generations of these experimental conditions, relative to the original population P, and assuming that clutch size is under genetic control, we expect clutch size to be in X and in Y