Dwarfism occurs when there is: 1. Over secretion of growth hormone II. Under secretion of growth hormone III. Over secretion of somatostatin IV. Under secretion of somatostatin.

I and III

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Only II

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II and III

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II and IV

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Solution

The correct option is A Only II
B. Only II
EXPLANATION: Dwarfism is caused by underproduction of growth hormone, which is also known as somatotropin. This disease occurs in childhood. Treatment with injections of a synthetic version of growth hormone may increase the height.

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Dwarfism results due to :

(a) excessive secretion of thyroxine hormone

(b) excessive secretion of growth hormone

(d) less secretion of growth hormone

Question 27
Dwarfism results due to:

(a) Excess secretion of thyroxin
(b) Less secretion of growth hormone
(c) Less secretion of adrenaline
(d) Excess secretion of growth hormone

Q. Hormone X is secreted by gland Y. The under-secretion of X causes ‘dwarfism’ and over-secretion causes ‘gigantism’ in children. Identify Y.

Q. Excess secretion of growth hormone leads to dwarfism.

Q. Name the disorder caused by the following situations :

(i) Oversecretion of growth hormone

(ii) Under secretion of insulin

(iii) Deficiency of Iodine

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Dwarfism occurs when there is: 1. Over secretion of growth hormone II. Under secretion of growth hormone III. Over secretion of somatostatin IV. Under secretion of somatostatin.

The correct option is A Only IIB. Only IIEXPLANATION: Dwarfism is caused by underproduction of growth hormone, which is also known as somatotropin. This disease occurs in childhood. Treatment with injections of a synthetic version of growth hormone may increase the height.

The correct option is A Only II
B. Only II
EXPLANATION: Dwarfism is caused by underproduction of growth hormone, which is also known as somatotropin. This disease occurs in childhood. Treatment with injections of a synthetic version of growth hormone may increase the height.