Question

select the correct answer. two species of frogs mate with each other. the embryo dies after a few cell divisions. what kind of reproductive isolation does this example represent? a. temporal isolation b. mechanical isolation c. postzygotic isolation d. gametic isolation

Explanation:

• Temporal isolation (A): Occurs when species breed at different times (not relevant here as mating occurs).
• Mechanical isolation (B): Relates to physical incompatibility of reproductive organs (not the case as mating happens).
• Gametic isolation (D): Involves gametes (sperm and egg) not fusing (not the issue here as embryo forms).
• Postzygotic isolation (C): Happens after fertilization (zygote formation). Here, the embryo dies after some cell divisions, which is a post - zygotic barrier.

Answer:

C. postzygotic isolation