Which of the following is a postzygotic barrier to reproduction? (1980)

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Question: Which of the following is a postzygotic barrier to reproduction? (1980)

Options:

Correct Answer: Hybrid inviability

Exam Year: 1980

Solution:

Hybrid inviability is a postzygotic barrier that occurs when hybrid offspring do not develop properly or die before reaching reproductive maturity.

Which of the following is a postzygotic barrier to reproduction? (1980)

Which of the following is a postzygotic barrier to reproduction? (1980)

Step 1: Understand what a postzygotic barrier is. It is a reproductive barrier that occurs after fertilization.
Step 2: Learn about hybrid inviability. This is when two different species mate and produce offspring (hybrids), but those offspring do not develop properly.
Step 3: Recognize that hybrid inviability means the hybrid offspring may die before they can grow up and reproduce.
Step 4: Conclude that hybrid inviability is indeed a postzygotic barrier because it happens after the zygote (fertilized egg) is formed.

No concepts available.