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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

Correct Answer :

B. lizard


Related Questions

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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

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

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

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

Sustentacular cells are found in

A. testis of mammals

B. testis of Ascaris

C. ovary of mammals

D. pancreas of frog

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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

The simplest type of placenta found in man is

A. Haemochorial

B. Epitheliochorial

C. Syndesmochorial

D. Haemo-endothelial

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4

Amnion helps in

A. respiration

B. excretion

C. nutrition

D. protection from shocks

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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

Failure of descending testis into the scrotum is known as

A. paedogenes

B. castration

C. cryptorchidism

D. impotency

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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

The human sperm was first seen and described by

A. Hamm and Leeuwenhock

B. Spallazani

C. De Graff

D. VonBaer

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4

The bidder canals help to pass out

A. ova

B. sperms

C. bile

D. saliva

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4

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

Embryo of a mammal is surrounded by

A. yolk

B. amniotfe fluid

C. both

D. none of these

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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

Amniotic fluid protects the foetus from

A. degeneration

B. encystment

C. jerks

D. none of these

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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

In rabbit, the sperms are stored and nourished in

A. testes

B. vasa deferentia

C. epidydymis

D. spermatic cord

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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

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

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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4

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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4

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

Sertoli cells are located in

A. caput epididymis

B. cauda epididymis

C. seminiferous tubules

D. germinal epithelium

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4

The hormone which shows a single mid cycle peak in the human female is

A. FSH

B. LH

C. oestrogen

D. progesterone

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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

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

A. Hydra

B. Earthworm

C. Frog

D. Cockroach

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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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The capsule enclosing testes of mammal is known as

A. tunica vasculosa

B. tunica albuginea

C. tunica vaginalis

D. none of these