Molecular genetic analysis shows that a turtle hybrid zone contains mainly F₁ individuals with a few backcross individuals.What can you infer from this? A) The hybrids have high fitness. B) The hybrid zone probably started only a couple generations ago. C) The hybrid zone has been around for more than 20 generations. D) The main type of reproductive isolation operating is behavioral. E) The main type of reproductive isolation operating is low hybrid viability.

Question

Quizplus · Accepted Answer

The prevalence of F₁ individuals and backcross individuals suggests that the hybrid zone is relatively young, as the offspring of the initial hybrids have not yet fully segregated into the parental types.

Molecular Genetic Analysis Shows That a Turtle Hybrid Zone Contains