During pregnancy,which one of the following i | vedclass

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(A) The placenta produces the hormone Human Chorionic Gonadotropin $(HCG)$.$HCG$ is secreted by the trophoblastic cells of the developing embryo.This

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$HCG$

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(A) The placenta produces the hormone Human Chorionic Gonadotropin $(HCG)$.$HCG$ is secreted by the trophoblastic cells of the developing embryo.This hormone has properties similar to the Luteinizing Hormone $(LH)$ of the pituitary gland.$HCG$ maintains the corpus luteum in the ovary and stimulates it to secrete progesterone throughout the early stages of pregnancy.Progesterone is essential for maintaining the endometrium of the uterus,which supports the developing fetus and prevents menstruation.Because $HCG$ is produced only during pregnancy,its presence in the urine is used as a diagnostic marker for pregnancy tests.

Column-$I$	Column-$II$
$A$. $1^{st}$ month	$i$. First movement of foetus
$B$. $2^{nd}$ month	$ii$. Major organ system
$C$. $3^{rd}$ month	$iii$. Foetal heart
$D$. $5^{th}$ month	$iv$. Limbs $\&$ digits

During pregnancy,which one of the following is excreted?

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In a normal pregnant woman,the amount of total gonadotropin activity was assessed. The result expected was

Match the following:

Column-$I$ Column-$II$

$A$. $1^{st}$ month $i$. First movement of foetus

$B$. $2^{nd}$ month $ii$. Major organ system

$C$. $3^{rd}$ month $iii$. Foetal heart

$D$. $5^{th}$ month $iv$. Limbs $\&$ digits

Assertion: In the morula stage,cells divide without an increase in size.
Reason: Zona pellucida remains undivided until cleavage is complete.

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