Assertion: The reproductive cycle of female primates is called menstrual cycle.
Reason :Menstrual cycle starts only before attaining sexual maturation (puberty).
Answer & explanation
Correct answer: option 4
The correct answer is Option (4)- Assertion is true but reason is false.
Assertion: This statement is true. The reproductive cycle in female primates (e.g. monkeys, apes and human beings is indeed called the menstrual cycle. The first menstruation begins at puberty and is called menarche. In human females, menstruation is repeated at an average interval of about 28/29 days, and the cycle of events starting from one menstruation till the next one is called the menstrual cycle
Reason: This statement is false. The menstrual cycle starts after attaining sexual maturation (puberty), not before. Puberty is the period during which individuals reach sexual maturity and become capable of reproduction. The menstrual cycle begins after puberty, marking the onset of reproductive capability.
Therefore, the correct answer is: Assertion is true but reason is false.