A : After menopause levels of blood gonadotropins will rise markedly. R : At time of menopause all o

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2.Human Reproduction

normal

$A$ : After menopause the levels of blood gonadotropins will rise markedly.
$R$ : At the time of menopause all the ovarian follicles are converted into follicular atresia and the ovaries are not responding to the gonadotropins

Assertion and Reason both are correct and also correct explantion.

Assertion and Reason both are correct but not explanation of assertion.

Assertion is correct, but Reason is incorrect.

Both Assertion and Reason are incorrect.

Solution

Gonadotropins are seen in urine of females after menopause. Absence of negative feedback of estrogen and progesterone increases level of gonadotropins in blood

Standard 12

Biology

The respiratory function of embryo is performed by

normal

Each seminiferous tubule is lined on its inside by two types of cells $A$ and $B$. Which of the following options is correct, w.r.t. the type of cell and its function?

$A$ $B$

normal

$A$ : Oxytocin acts on the uterine muscles and cause stronger uterine contractions, which in turn stimulates further secretion of oxytocin.
$R$ : Oxytocin is released from maternal pituitary

normal

Spleen develops from

normal

The phenomenon of fertilization was first perceived by

normal

$A$ : After menopause the levels of blood gonadotropins will rise markedly. $R$ : At the time of menopause all the ovarian follicles are converted into follicular atresia and the ovaries are not responding to the gonadotropins

Solution

Similar Questions

The respiratory function of embryo is performed by

Each seminiferous tubule is lined on its inside by two types of cells $A$ and $B$. Which of the following options is correct, w.r.t. the type of cell and its function? $A$ $B$

$A$ : Oxytocin acts on the uterine muscles and cause stronger uterine contractions, which in turn stimulates further secretion of oxytocin. $R$ : Oxytocin is released from maternal pituitary

Spleen develops from

The phenomenon of fertilization was first perceived by

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$A$ : After menopause the levels of blood gonadotropins will rise markedly.
$R$ : At the time of menopause all the ovarian follicles are converted into follicular atresia and the ovaries are not responding to the gonadotropins

Each seminiferous tubule is lined on its inside by two types of cells $A$ and $B$. Which of the following options is correct, w.r.t. the type of cell and its function?

$A$ $B$

$A$ : Oxytocin acts on the uterine muscles and cause stronger uterine contractions, which in turn stimulates further secretion of oxytocin.
$R$ : Oxytocin is released from maternal pituitary