Courses
Q.
Which of the following statements are true for spermatogenesis but do not hold true for oogenesis?
(a) It results in the formation of haploid gametes
(b) Differentiation of gamete occurs after the completion of meiosis
(c) Meiosis occurs continuously in a mitotically dividing stem cell population
(d) It is controlled by the Luteinising hormone (LH) and Follicle Stimulating Hormone (FSH) secreted
by the anterior pituitary
(e) It is initiated at puberty
Choose the most appropriate answer from the options given below.
see full answer
Start JEE / NEET / Foundation preparation at rupees 99/day !!
a
(b), (d) and (e) only
b
(c) and (e) only
c
(b), (c) and (e) only
d
(b) and (c) only
answer is C.
(Unlock A.I Detailed Solution for FREE)
Ready to Test Your Skills?
Check your Performance Today with our Free Mock Test used by Toppers!
Take Free Test
Detailed Solution
(a) In both spermatogenesis and oogenesis, haploid gametes are formed.
(b) Differentiation of spermatids to spermatozoa (spermiogenesis) occurs only during
spermatogenesis. The spermatozoon is morphologically much different from the spermatid.
Oogenesis does not involve such morphological differentiation of the ovum.
(c) Meiosis is continuous during spermatogenesis.
During oogenesis meiosis begins during embryonic stage and gets arrested at prophase-I. It resumes only after puberty. So, meiosis is discontinuous during oogenesis while it is continuous during spermatogenesis.
(d) Spermatogenesis is controlled by FSH and androgens (but not directly by LH). Oogenesis is also controlled by FSH only. LH stimulates ovulation but not oogenesis. Thus (d) does not hold good for both spermatogenesis and oogenesis.
(e) Spermatogenesis is initiated at puberty whereas oogenesis is initiated during embryonic stage itself.