Isolating mechanisms that prevent reproductive attempts or make it unlikely that reproductive attempts will be successful are referred to as A) prezygotic reproductive isolating mechanisms. B) a lack of F₂ fitness. C) postzygotic isolating mechanisms. D) Two of these are correct. E) None of the answer choices are correct.

Question

Quizplus · Accepted Answer

Prezygotic reproductive isolating mechanisms prevent reproductive attempts from occurring, while postzygotic isolating mechanisms prevent successful reproduction after fertilization has occurred. Choice B is not a commonly used term in biology, and choice C is incorrect as it refers to mechanisms that occur after fertilization.

Isolating Mechanisms That Prevent Reproductive Attempts or Make It Unlikely