$A$: Corpus luteum begins to atrophy after a short life of $10$ to $14$ days,if fertilization does not occur.
$R$: Luteolysis may be due to the withdrawal of $LH$ support.

  • A
    Assertion and Reason both are correct and Reason is the correct explanation of Assertion.
  • B
    Assertion and Reason both are correct but Reason is not the correct explanation of Assertion.
  • C
    Assertion is correct,but Reason is incorrect.
  • D
    Both Assertion and Reason are incorrect.

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Which of the following is the correct pairing of events occurring during the menstrual cycle?

In human females,the menstrual cycle can be inhibited by the administration of:

Human female reaches menopause at the age of about (in $years$)

From the following tables,select the option that correctly characterizes various phases of the menstrual cycle.

At which phase is the secretion of gonadotropins ($LH$ and $FSH$) highest during the menstrual cycle?

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