BiologyWhich of the following statements are true for oogenesis but do not hold true for spermatogenesis ?a) It is initiated during foetus stageb) It results in the formation of unequal cellsc) It is initiated at pubertyd) Meiosis occur continuously during gamete formatione) It is continued up to old ageChoose the most appropriate answer from the options given below.

Which of the following statements are true for oogenesis but do not hold true for spermatogenesis ?
a) It is initiated during foetus stage
b) It results in the formation of unequal cells
c) It is initiated at puberty
d) Meiosis occur continuously during gamete formation
e) It is continued up to old age
Choose the most appropriate answer from the options given below.

  1. A

    a, b and d only

  2. B

    a and b only

  3. C

    b, c and e only

  4. D

    c and e only

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    Solution:

    The process of formation of a mature female gamete is called oogenesis which is markedly different from spermatogenesis. Oogenesis is initiated during the embryonic development stage when a couple of million gamete mother cells (oogonia) are formed within each fetal ovary; no more oogonia are formed and added after birth.
    These cells start division and enter into prophase-I of the meiotic division and get temporarily arrested at that stage.
    First meiotic division results in the formation of unequal daughter cells, a large haploid secondary oocyte and a tiny first polar body.

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