Question 28
Dramatic changes of body features associated with puberty are mainly due to the secretion of

(a) estrogen from testes and testosterone from the ovary
(b) estrogen from adrenal gland and testosterone from pituitary gland
(c) testosterone from testes and estrogen from the ovary
(d) testosterone from the thyroid gland and estrogen from pituitary gland

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Solution

(c) testosterone from testes and estrogen from the ovary

Dramatic changes of body features are associated with puberty and they occur mainly due to the secretion of testosterone in males and oestrogen in females.

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Q. The dramatic changes in body features associated with puberty are mainly because of the secretions of :
(a) estrogen from testes and testosterone from ovary
(b) estrogen from adrenal gland and testosterone from pituitary gland
(c) testosterone from testes and estrogen from ovary
(d) testosterone from thyroid gland and estrogen from pituitary gland

Question 15
Select the mismatched pair

(a) Adrenaline: Pituitary gland
(b) Testosterone: Testes
(c) Estrogen : Ovary
(d) Thyroxine: Thyroid gland

Which of the following is a mis-matched pair ?

(a) adrenaline : pituitary gland (b) estrogen : ovary

Q. The secretion of testosterone and estrogen by testes and ovaries respectively is under the control of endocrine gland X. Endocrine gland X is ____________.

Q. Changes of body features associated with puberty are mainly because of the secretion of _______ from ovary and testosterone from _______.

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Human Reproduction

Standard X Biology

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(c) testosterone from testes and estrogen from the ovary Dramatic changes of body features are associated with puberty and they occur mainly due to the secretion of testosterone in males and oestrogen in females.

(c) testosterone from testes and estrogen from the ovary

Dramatic changes of body features are associated with puberty and they occur mainly due to the secretion of testosterone in males and oestrogen in females.