MHT CET · BIOLOGY · STD 12 - 2. Reproduction in Lower and Higher Animals

With reference to human beings, find out the mis-match pair.

A Implantation - setting of zygote in the endometrium uterus.
B Insemination - Discharge of semen into the vagina of a female
C Menarche - beginning of menstrual cycle for the first time in life.
D Menopause - Total arrest of menstrual cycle forever.

Verified Solution

Answer & Solution

Correct Answer

(A) Implantation - setting of zygote in the endometrium uterus.

Step-by-step Solution

Detailed explanation

Implantation is settling of blastula into the endometrium with help of Syncytiotrophoblast cells.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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