Biological Classification And System Of Classification Question 189

Question: Plasmogamy is fusion of [AIIMS 1992, 97]

Options:

A) Two haploid cells including their nuclei

B) Two haploid cells without nuclear fusion

C) Sperm and egg

D) Sperm and two polar nuclei

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Answer:

Correct Answer: B

Solution:

It is the first stage of sexual reproduction in which the cytoplasm of two sex cells fuse with each other.

The nuclei of sex cells come close to each other but do not fuse.

Thus the resulting cell becomes binucleate or dikaryon.