If human gametes had the same chromosome number as body cells, what problem would occur in every generation?
Answer and explanation
Correct answer: The chromosome number would keep increasing in every generation
The governing concept is chromosome-number continuity through sexual reproduction. A human body cell has 46 chromosomes. If both sperm and egg also had 46, fertilisation would produce a zygote with 92 chromosomes. If that organism later produced full-number gametes, the next generation could have 184, so the number would continue rising rather than remaining stable. Hence option A is correct.
Frequently asked questions
What is the correct answer to this question?
The chromosome number would keep increasing in every generation
Why is this the correct answer?
The governing concept is chromosome-number continuity through sexual reproduction. A human body cell has 46 chromosomes. If both sperm and egg also had 46, fertilisation would produce a zygote with 92 chromosomes. If that organism later produced full-number gametes, the next generation could have 184, so the number would continue rising rather than remaining stable. Hence option A is correct.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Heredity and Evolution.
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