161. If after ovulation no pregnancy result the corpus luteum
A. Is maintained by the presence of progesterone
B. Degenerates in a short time
C. Becomes active and secretes lot of FSH and LH
D. Produces lot of oxytocin and relaxin
Answer : Option B
162. How many secondary spermatocyte will be required to form 400 spermatozoans.
163. 1st polar body is formed at which stage of oogenisis
164. In oogenesis diploid cell produce _______ ovum.
165. The process of delivery of the foetus is called