Suppose that a group of male pied flycatchers migrated from a region where there were no collared flycatchers to a region where both species were present. Assuming events like this are very rare, which of the following scenarios is LEAST likely?
A) The frequency of hybrid offspring would increase.
B) Migrant pied males would produce fewer offspring than would resident pied males.
C) Pied females would rarely mate with collared males.
D) Migrant males would mate with collared females more often than with pied females.
E) The frequency of hybrid offspring would decrease.

Question

Quizplus · Accepted Answer

The introduction of new genes from the collared flycatcher gene pool would increase the likelihood of hybridization between the two species. Therefore, it is least likely that the frequency of hybrid offspring would decrease.

Suppose That a Group of Male Pied Flycatchers Migrated from a Region