Question

Double fertilization means
(a) fusion of male gametes and ovum
(b) fusion of two polar bodies
(c) a male gamete fused with egg and second
male gamete fused with secondary nucleus
(d) all the above

Answer 1

Explanation:

Double fertilization is the process when the one sperm fuses with the egg while the other sperm fuses with the two polar nuclei. When pollen tube enters ovule, it strikes one of the synergids and burst open to release the two male gametes which fuses with two different structures in the same female gametophyte. The fusion with two polar nuclei forms endosperm.

So, the correct answer is option D.

Answer 2

Explanation:

When pollen tube enters ovule, it strikes one of the synergids and burst open to release the two male gametes which fuses with two different structures in the same female gametophyte. The fusion with two polar nuclei forms endosperm.

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Thus, correct answer is option (D.)

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