221. The process of spermatogenesis and oogenesis in most vertebrates are under the influence of which hormone

A Oxytocin
B FSH & L, H
C ACTH
D I C SH
Answer :   FSH & L, H
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222. During spermatogenesis how may spermatozxoa are formed from a single primary spermatocyte

A 1
B 2
C 4
D 8
Answer :   4
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223. Mainly which thpe of hormones control the menstrual cycle in human beings

A FSH
B LH
C FSH, LH. Estrogen
D Progesterone only
Answer :   FSH, LH. Estrogen
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224. After ovulation the collapsed ovarian follicle shrinks and becomes filled with cell to form

A corpus luteum
B corpus albicans
C corpus atresia
D corpus adiposum
Answer :   corpus luteum
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225. The hormone thaat prevents ovulation and formation of corpus luteum is

A Progesterone
B Estrogen
C LH
D FSH
Answer :   Progesterone
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226. The shared terminal duct of the reproductive and urinary system in the human male is:

A Urethra
B Ureter
C Vas deferens
D Vasa efferentia
Answer :   Urethra
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227. During differentiation the spermatids remain associated with

A Leyding's cells
B Kuffer's cells
C Spermatogonia
D Sertoli cell
Answer :   Sertoli cell
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228. The Leydig cells found in the human body are the secretory source of

A Progesterone
B intestinal mucus
C glucagon
D androgens
Answer :   androgens
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229. The estrous cycle is a characteristic of

A human males only
B human females only
C mammalian males other than primates
D mammalian females other than primates
Answer :   mammalian females other than primates
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230. In mammals, maturation of sperms take place at a temperature

A Equal to that of body
B Higher than that of body
C Lower than that of bosy
D At any piece of mammalian spem
Answer :   Lower than that of bosy
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