NCERT - Human Reproduction Questions and Answers of Class 12 Biology | GkSeries

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Questions
166 Blastopore is the pore of
1 Coelom
2 Archenteron
3 Blastocoel
4 Alimentary canal

Answer: Archenteron
167 Which set is similar?
1 Sebum- sweat
2 Vitamin B 7- Niacin
3 Bundle of His- Pace maker
4 Corpus luteum- Graffian follicles

Answer: Corpus luteum- Graffian follicles
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168 After few days of delivery, the mammary glands secrete a highly nutritive fluid called
1 Colostrum
2 Renin
3 Serotonin
4 Secreti

Answer: Colostrum
169 Where does fertilization usually take place?
1 Cervix
2 Vagina
3 Uterus
4 Oviduct

Answer: Oviduct
170 Antrum is cavity of
1 Ovary
2 follicle Graafian
3 Blastula
4 Gastrual

Answer: follicle Graafian
171 In the human female, menstruation can be deferred by the administration of:
1 Combination of estrogen and progesterone
2 Combination of FSH and LH
3 LH only
4 FSH only

Answer: Combination of estrogen and progesterone
172 The testes in humans are situated outside the abdominal cavity inside a pouch called scrotum. The purpose served is for
1 Providing a secondary sexual feature for exhibiting the male sex
2 Maintaining the scrotal temperature lower than the internal body temperature
3 Escaping any possible compression by the visceral organs
4 Providing more space for the growth of epididymis

Answer: Maintaining the scrotal temperature lower than the internal body temperature
173 Which one of the followings secretes the gonadotropic hormones?
1 Adrenal
2 Anterior pituitary
3 Posterior pituitary
4 Thyroid

Answer: Anterior pituitary
174 Which one of the following statements is false in respect of viability of mammalian sperm?
1 Viability of sperm is determined by its motility
2 Sperms must be concentrated in a thick suspension
3 Sperm is viable for only up to 24 hours
4 Survival of sperm depends on the pH of the medium and is more active in alkaline medium

Answer: Sperm is viable for only up to 24 hours
175 Foetal ejection reflex in human female is induced by
1 Differentiation of mammary glands
2 Pressure exerted by amniotic fluid
3 Release of oxytocin from pituitary
4 Fully developed foetus and placenta

Answer: Fully developed foetus and placenta
176 Fertilizin is a chemical substance produced from
1 Acrosome
2 Mature eggs
3 Polar bodies
4 Middle piece of sperm

Answer: Mature eggs
177 Cavity of graafian follicle is
1 Amniotic cavity
2 Antrum
3 Liquor folliculi
4 Discus proligerous

Answer: Amniotic cavity
178 Cauda epididymis leads to
1 Rete testis
2 Vas deferens
3 Ejaculatory duct
4 Vas efferens

Answer: Vas deferens
179 Acrosomal cap is formed from
1 Ribosomes
2 Mitochondria
3 Nucleus
4 Golgi complex

Answer: Golgi complex
180 Which one of the followings causes the mammary glands to enlarge at puberty?
1 Testosterone
2 Progesterone
3 Estrogen
4 Oxytocin

Answer: Estrogen

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