Assertion: During pregnancy the levels of hormones like estrogens and progetrogens are increased.
Reason: The increased production of these hormones is essential for fetal growth.

Assertion: During pregnancy, the levels of hormones like estrogens, progestrogens, cortisol, prolactin, thyroxine. etc., are increased several folds in the maternal blood. Reason: Increased production of these hormones is essential for supporting the fetal growth.

Assertion (A) , The levels of hormones like oestrogens and progestrogens are increased during pregnancy. Reason (R) : In order to ensure proper foetal growth, the production of these hormones is crucial .

During pregnancy degeneration of corpus luteum is prevented by the hormone

During pregnancy degeneration of corpus luteum is prevented by the hormone

Assertion :- In osteoporosis bone mass decreased and chances of fractures increased. Reason :- Decreased level of estrogen is a common cause of osteoporosis.

Assertion :- In osteoporosis bone mass decreased and chances of fractures increased. Reason :- Decreased level of estrogen is a common cause of osteoporosis.