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Q.

What is double fertilisation in plants?

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a

The fusion of two sperm cells with two different egg cells

b

The fusion of a sperm cell with an egg cell and another sperm cell with a polar body

c

One sperm fertilizes the egg and another sperm combines with two polar nuclei or secondary nucleus.

d

The repeated fertilisation of an egg by two sperm in two separate events

answer is C.

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Detailed Solution

Double fertilization in plants involves two events of fertilisation.
1)One male gamete fuses with one egg cell - Syngamy, to form a diploid zygote
2) Another male gamete fuses with the polar nuclei of the central cell to form triploidy PEC

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