Given below are two statements: one is labelled as Assertion $A$ and the other is labelled as Reason $R$.

Assertion $A$: Endometrium is necessary for implantation of blastocyst.

Reason $R$: In the absence of fertilization, the corpus luteum degenerates that causes disintegration of endometrium.

In the light of the above statements, choose the correct answer from the options given below:

  • [NEET 2023]
  • A

    $A$ is false but $R$ is true.

  • B

    Both $A$ and $R$ are true and $R$ is the correct explanation of $A$.

  • C

    Both $A$ and $R$ are true but $R$ is NOT the correct explanation of $A$.

  • D

    $A$ is true but $R$ is false.

Similar Questions

Which one of the following events is correctly matched with the time period in a normal menstrul cycle

  • [AIIMS 2005]

What are the changes in the oogonia during the transition of a primary follicle to Graafian follicle ?

Match the columns.

Column 1 Column II
$(a)$ $6-14$ days $(1)$ It is known as menstrual cycle
$(b)$ $1-5$ days $(2)$ Polar body is down
$(c)$ $15-28$ days $(3)$ It is known as proliferative phase
 

$(4)$ Endometrium is prepared forimplantation of embryo

 

When pregnancy does not occur, the life of corpus luteum is about

Correct hormonal sequence in the increase of menstruation is