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Q.

Which of the following does not lead to genetic variability?

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a

Random fertilization.

b

Crossing over during meiosis.

c

Division of chromosomes during anaphase of mitosis.

d

Orientation of chromosomes during metaphase I of meiosis.

answer is C.

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Detailed Solution

Mitosis does not introduce genetic variations as mitosis is a mode of cell division in which the daughter cells are genetically similar to the parent cell because their nuclei have the same number and type of chromosomes as are present in the parent cell.

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Which of the following does not lead to genetic variability?