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4

The spermatogenesis in mammalian testis is conrolled by

A. follicle stimulating hormone (FSH)

B. luteininzing hormone (LH)

C. ICSH

D. LH and ICSH

Correct Answer :

A. follicle stimulating hormone (FSH)


Related Questions

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4

The fight or flight response in the event of danger, is chiefly effected by

A. glucocorticoids

B. mineralocorticoids

C. epinephrine and norepinephrine

D. glucocorticoids, epinephrine

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4

Which disease is caused by the deficiency of thyroxine in the adult ?

A. Diabetes insipidus

B. Diabetes mellitus

C. Myxoedema

D. Exopthalmic goitre

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4

A posterior pituitary hormone released during parturition is

A. Oxytocin

B. Vasopressin

C. ICSH

D. ACTH

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4

M.S.H produced by the pars intermedia of pitiutary causes in lower vertebrates

A. darkening of skin

B. light colouration of skin

C. both (a) and (b)

D. none of these

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4

In the ovary, the progesterone and estrogen are secreted by

A. corpus callosum

B. corpus albicans

C. corpus luteum and Graffian follicles

D. cells of Graffian follicles

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4

Selective accumulation of iodine occurs in

A. liver

B. thymus

C. spleen

D. thyroid

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4

The activity of Leydig cells is governed by a pituitary hormone abbreviated as

A. HCG

B. ACTH

C. FSH

D. ICSH

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4

In the male, testosterone exerts profound effects on

A. development of secondary sex characters

B. skeletal muscle to increase in size

C. baldness

D. all of these

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4

Addison's disease is caused by under secretion of

A. Adrenalin

B. Cortin

C. Insulin

D. ACTH

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4

ACTH is secreted by

A. adrenal cortex

B. thyroid

C. adrenal medulla

D. pituitary

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4

The spermatogenesis in mammalian testis is conrolled by

A. follicle stimulating hormone (FSH)

B. luteininzing hormone (LH)

C. ICSH

D. LH and ICSH

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4

Most contraceptive pills contain

A. estrogen + FSH

B. progesterone + LH

C. progesterone + FSH

D. oestrogen and progesterone

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4

Androgens are secreted from

A. Leydig cells and placenta

B. Testis and adrenal cortex

C. Adenohypophysis and testis

D. Leydig cels and adrenal cortex

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4

At the time of puberty the hormone that triggers sexual characters in male is

A. adrenalin

B. testosterone

C. insulin

D. thyroxin

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4

One of the endocrine glands is known as master gland:

A. Thyroid

B. Pituitary

C. Parathyroid

D. Adrenal

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4

Which of the following will be least effected if the pituitary gland of an adult rat is removed?

A. Adrenal

B. Adrenal medulla

C. Thyroid

D. Gonads

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4

Deficiency of iodine in diet leads to

A. enlargment of hands and feet

B. enlargement of liver

C. enlargement of bones

D. enlargement of neck region

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4

Islets of Langerhans secrete a hormone which controls diabetes mellitus :

A. Insulin

B. Rennin

C. Ptyalin

D. HQ

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4

Pituitary gland is under the control of

A. pineal

B. hypothalamus

C. adrenals

D. none of these

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4

Which endocrine gland stores its secretion in an extracellular space before discharging it into the blood ?

A. Thyroid

B. Pancreas

C. Adrenal

D. Testis

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4

Symptoms such as softening of bones which are easily bent or fractured are mainly due to

A. hypothyroidism

B. hyperthyroidism

C. hypoparathyroidism

D. hyperparathyroidism

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4

In the blood calcium and phosphate levels are controlled by

A. thyroid

B. parathyroid

C. adrenal

D. both (a) and (b)

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4

Throughout pregnancy the hormones which remain low in plasma are

A. FSH

B. FSH and LH

C. LH

D. Estrogen and progesterone

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4

A decrease in level of oestrogen and progesterone causes

A. loss of endometrium

B. growth and dilation of metridium

C. release of ova from ovaries

D. constriction of uterine blood vessels leading to sloughing of uterine epithelium

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4

The glands which pour their secretion directly into blood are tamed as

A. endocrine glands

B. exocrine glands

C. holocrine glands

D. apocrine glands

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4

Hormones which are produced by neurons are

A. epinephrine and noepinephrine

B. melatonin and serotonin

C. oxytocin and vasopressin

D. all of these

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4

Gonadotropic hormones are produced in

A. posterior part of thyroid

B. adrenal cortex

C. adenohypophysis of pitiutary

D. interstitial cells of testis

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4

Which hormone promotes persistence of larval characters ?

A. Juvenile hormone

B. Thyroxin

C. Insulin

D. Ecdysone

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4

Acromegaly is a disease in which the bones develop irregularly, which is due to over secretion of

A. STH

B. ACTH

C. GTH

D. GH

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4

Thyroxine has direct effect on

A. blood flow \

B. cellular respiration

C. rate of excretion

D. rate of digestion