and iv d) ii, iii and iv Chapter - Human Reproduction . Select the incorrect statement. [NEET , phase I] a) LH and FSH trigger ovulation in ovary b) LH and FSH decrease gradually during the follicular phase c) LH triggers secretion of androgens from the Leydig cells. d) FSH stimulates the sertoli cells which help in spermiogenesis .
Identify the correct statement on ‘inhibitin’ [NEET , phase I] a) is produced by granulose cells in ovary and inhibits the secretion of FSH b) is produced by granulose cells in ovary and inhibits the secretion of LH c) is produced by nurse cells in testes and inhibits the secretion of LH d) inhibits the secretion of LH, FSH and prolactin. . Several hormones like hCG, hPL, oestrogen and progesterone are produced by [NEET , phase I ] a) ovary b) placenta c) fallopian tube d) pituitary . Match column I with column II and select the correct option using the codes given below [NEET , phase I] Column I Column II A.
Mons pubis .Embryo formation B. Antrum . Sperm C. Trophectoderm .
Female external genitalia D. Nebenkem . Graafian follicle A B C D a) b) c) d) . Which one of the following is not the function of placenta?
(NEET, ) a) To facilitate supply of oxygen and nutrients to embryo b) To secrete oestrogen c) To facilitate the removal of carbondioxide and material from embryo d) To secrete oxytocin during parturition . The testes in human are situated outside the abdominal cavity inside a pouch called scrotum. The purpose served is for [AIPMT ] a) escaping any possible compression by the visceral organs. b) providing more space for the growth of epididymis.
c) providing a secondary sexual feature for exhibiting the male sex d) maintaining the scrotal temperature lower than internal body temperature . Hormones secreted by placenta to maintain pregnancy are [NEET, ] a) hCG, hPL, progesterone, estrogen b) hCG, hPL, estrogen, relaxin, oxytocin XII Std Biology-Zoology Competitive Questions