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4

The placental barrier between animal and foetal blood is minimum

A. goat

B. cow

C. pig

D. man

Correct Answer :

C. pig


Related Questions

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4

The gestation period of elephant is about

A. 11 months

B. 10 months

C. 15 months

D. 22 months

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4

In which of the animals, the fertilization occurs externally in water ?

A. Hydra

B. Earthworm

C. Frog

D. Cockroach

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4

Gestation period in man is a about

A. 10 weeks

B. 28 weeks

C. 32 weeks

D. 35 weeks

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4

Graffian follicles are characteristically found in the

A. ovary of mammal

B. ovary of frog

C. testis of frog

D. testis of mammal

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4

Sertoli cells are located in

A. caput epididymis

B. cauda epididymis

C. seminiferous tubules

D. germinal epithelium

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4

Amnion is an extra-embryonic embrane which develops during the embryonic development of

A. cockroach

B. lizard

C. toad

D. fish

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4

Embryo of a mammal is surrounded by

A. yolk

B. amniotfe fluid

C. both

D. none of these

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4

The site of fertilization in the female mammalian reproductive system is

A. vagina

B. uterus

C. fallopian tube

D. ovarian fimbriae

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4

The region where the sperm enters egg is called

A. equator

B. rseceptive cone

C. animal pole

D. vegetal pole

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4

The structure that attaches testis to dorsal body wall is

A. tunica albuginea

B. scrotal sac

C. mesorchium

D. gubernaculum

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4

The simplest type of placenta found in man is

A. Haemochorial

B. Epitheliochorial

C. Syndesmochorial

D. Haemo-endothelial

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4

Allantois of the mammalian embryo helps in

A. respiration

B. excretion

C. protection

D. nutrition

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4

The testes secrete a group of hormones called

A. progestogens

B. androgens

C. estrogens

D. tropic hormones

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4

In the testis of rabbit, the hormone secreting cells are

A. spermatogonia

B. spermatocytes

C. sustentacular cells

D. cells of Leydig

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4

Cells of Sertoli are found in

A. testis of rabbit

B. testis of cockroach

C. testis of frog

D. liver of mammals

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4

The structure of the male reproductive system that corresponds to oviduct of the female system is

A. seminiferous tubules

B. epididymis

C. vas deferens

D. urethra

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4

The testis are found in the abdomen in

A. kangaroo

B. elephant

C. rabbit

D. goat

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4

bartholine glands are found and associated with

A. female reproductive organs of cockroach

B. male reproductive organs of earthworm

C. male reproductive organs of rabbit

D. female reproductive organs of rabbit

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4

The female rabbit is

A. spontaneous ovulator

B. seasonal ovulator

C. induced ovulator

D. natural ovulator

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4

After a sperm has entered an ovum in the process of fertilization, entry of further sperms is prevented by

A. development of the vitelline membrane

B. development of the pigment coat

C. condensation of yolk

D. formation of fertilization membrane

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4

One of the following accessory glands in the male reproductive system produces secretions that neutralise the acidity in the urethra and in the female genital tract. This is necessary for survival of sperms. This fluid is secreted by

A. seminal vesicle

B. prostrate gland

C. cowper's gland

D. coagulating gland

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4

Fertilizers are substances emitted from

A. mature eggs

B. immature eggs

C. sperms

D. polar body

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4

Failure of descending testis into the scrotum is known as

A. paedogenes

B. castration

C. cryptorchidism

D. impotency

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4

A woman's fertility ceases at about 49-55 years. This is known as

A. gestation

B. menstruation

C. puberty

D. menopause

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4

One of these is polyestrous

A. Sheep

B. Bitches

C. Cows

D. Goats

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4

Cryptorchidism is a condition in which testes are

A. surgically removed

B. not developed in foetus

C. unable to produce sperms

D. unable to descend into scrotal sacs

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4

Placenta is the region, where

A. foetus is supplied by maternal blood

B. foetus receives maternal blood and nutrition

C. embryo is enclosed by membranes

D. embryo is attached to mother by umbilical cord

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4

Amniotic fluid protects the foetus from

A. degeneration

B. encystment

C. jerks

D. none of these

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4

The placental barrier between animal and foetal blood is minimum

A. goat

B. cow

C. pig

D. man

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4

In the human menstrual cycle, ovulation occurs around

A. day 10

B. day 14

C. day 8

D. day 22