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4

The simplest type of placenta found in man is

A. Haemochorial

B. Epitheliochorial

C. Syndesmochorial

D. Haemo-endothelial

Correct Answer :

B. Epitheliochorial


Related Questions

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4

Gubernaculun connects

A. testis to scrotum

B. ovary to the body wall in abdomen

C. the two muscles

D. the two bones

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4

The part of reproductive system in male which neither produces hormones nor sperms is

A. seminal vesicles

B. cowper's glands

C. prostrate glands

D. all of these

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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

Clitoris in mammals is

A. homologous to penis

B. analogous to penis

C. functional penis in female

D. non-functional penis in male

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Amnion helps in

A. respiration

B. excretion

C. nutrition

D. protection from shocks

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The seminal vesicle in rabbit is found at the junction of

A. prostrate and Cowper's glands

B. porstrate and vasa deferens

C. prostrate and urethra

D. vasa deferens and testis

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4

Which of the following animals are hermaphrodites?

A. Tapeworm

B. Leech

C. Earthworm

D. All of these

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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

The capsule enclosing testes of mammal is known as

A. tunica vasculosa

B. tunica albuginea

C. tunica vaginalis

D. none of these

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4

The structure formed after release of ova from Graffian follicles and secretory in nature, is

A. corpus callosum

B. corpus luteum

C. corpus albicans

D. corpus striatum

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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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Those person in which testes does not descend into scrotal sac

A. show normal secondary sexual characters as the Leydig cells are unaffected

B. are normal in every respect except that they lack ability to procreate

C. the testes are comparatively smaller in size

D. all of these

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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 gestation period of rabbit is

A. 28 - 32 days

B. 60 - 70 days

C. 20 - 25 days

D. 80 - 90 days

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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

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

A. Hydra

B. Earthworm

C. Frog

D. Cockroach

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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

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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The process of spermatogenesis in human testis is completed in

A. 74 days

B. 90 days

C. 56 days

D. 32 days

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The bidder canals help to pass out

A. ova

B. sperms

C. bile

D. saliva

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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

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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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The sperm count increases

A. if a person takes hot bath at 43 - 45°C for 30 minutes per day

B. if a person wears althletic supporters

C. during summer months

D. during winter months

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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

Gestation period in man is a about

A. 10 weeks

B. 28 weeks

C. 32 weeks

D. 35 weeks

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Rupturing of follicles and discharge of ova is known as

A. copulation

B. ovulation

C. oviposition

D. conjugation

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The structure that attaches testis to dorsal body wall is

A. tunica albuginea

B. scrotal sac

C. mesorchium

D. gubernaculum

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Allantois of the mammalian embryo helps in

A. respiration

B. excretion

C. protection

D. nutrition

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The testes secrete a group of hormones called

A. progestogens

B. androgens

C. estrogens

D. tropic hormones

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The simplest type of placenta found in man is

A. Haemochorial

B. Epitheliochorial

C. Syndesmochorial

D. Haemo-endothelial