Archive
17th of March 2017
Biology
Q:

Good Evening Sir,

Q:- How many meiotic divisions are required to produce 40 zygotes of frog? Explain.

By- SAHIL

Sahil Kumar Sahoo - CBSE - Class X

Friday, March 17, 2017 at 18:30:PM

A:

Hi Sahil,

Zygotes are formed by the union of male gametes (sperms) and female gametes (egg).

To produce 40 zygotes,

  • 40 meiotic divisions are necessary to produce 40 haploid egg cells because generally 1 egg is produced by the meiosis of 1 oogonium.
  • 10 meiotic divisions are necessary to produce 40 haploid sperms because 4 spermatids are produced by the meiosis of 1 primary spermatocyte.

Therefore, the total number of meiotic divisions required to produce 40 zygotes = 40 + 10 = 50.

Friday, March 17, 2017 at 18:59:PM