Q.

Which one of the following generates new genetic combinations leading to variation?

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a

Vegetative reproduction

b

Parthenogenesis

c

Sexual reproduction

d

Nucellar polyembryony

answer is C.

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Detailed Solution

Sexual reproduction generate new genetic combinations leading to variations because sexual reproduction involves meiosis that is characterised by crossing over and independent assortment. Both of processes create new combinations of genes and leads to variations. Vegetative reproduction, Parthenogenesis and nucellar polyembryony are devoid of meiosis. So can’t generate new combinations.
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