Which of the following statements are true for oogenesis, but do not hold true for spermatogenesis?
(a) It is initiated at puberty.
(b) It results in formation of 4 haploid gametes.
(c) Meiosis occurs continuously in mitotically dividing stem cells.
(d) Meiosis produces unequal cells.
(e) It does not cease after 50 years.

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a, b, c, e

d only

a, b, d

b, d only

answer is B.

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Detailed Solution

Meiosis I and II are unequal divisions in oogenesis. Meiosis occurs discontinuously in oogenesis (it is continuous in spermatogenesis). In oogenesis, one secondary oocyte (haploid) is released per menstrual cycle. Menopause occurs around 50 years of age in women.

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