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Question

A : The gametes will be having half the number of chromosomes as compared to non-reproductive cells.
B : A zygote will also have only half the number of chromosomes.
Which option(s) would be right?

A
Only A is correct
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B
Only B is correct
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C
Both A and B are correct
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D
Both A and B are wrong
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Solution

The correct option is A Only A is correct
There are special lineages of cells in specialised organs in which only half the number of chromosomes and half the amount of DNA as compared to the non-reproductive body cells are present. This is achieved by a process of cell division called meiosis. Thus, when these germ-cells from two individuals combine during sexual reproduction to form a new individual, it results in re-establishment of the number of chromosomes and the DNA content in the new generation. Therefore, the zygote will be diploid or will contain normal amount of chromosomes.

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