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

Identify the CORRECT match from the Columns I, II and III.
I II III
1. Interstitial cells a. Cortex of ovary i. Follicular fluid
2. Sertoli cells b. Ovarian follicle ii. Progesterone
3. Granulosa cells c. Testis iii. Attachment of sperm bundle
4. Cells of corpus luteum d. Seminiferous tubules iv. Testosterone

A 2-a-iii, 1-c-iv, 3-b-i, 4-d-ii
B 1-c-iv, 2-d-iii, 3-b-i, 4-a-ii
C 1-d-iii, 2-a-iv, 3-b-i, 4-c-ii
D 2-d-iii, 1-c-iv, 3-a-ii, 4-b-iv

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Answer & Solution

Correct Answer

(B) 1-c-iv, 2-d-iii, 3-b-i, 4-a-ii

Step-by-step Solution

Detailed explanation

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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I	II	III
1. Interstitial cells	a. Cortex of ovary	i. Follicular fluid
2. Sertoli cells	b. Ovarian follicle	ii. Progesterone
3. Granulosa cells	c. Testis	iii. Attachment of sperm bundle
4. Cells of corpus luteum	d. Seminiferous tubules	iv. Testosterone

	I		ll
i.	Competition	a.	Tapeworm and man
ii.	Commensalism	b.	Lichen
iii.	Mutualism	c.	Cattle egret and cattle
iv.	Parasitism	d.	Lions and Leopards

Identify the CORRECT match from the Columns I, II and III.IIIIII1. Interstitial cellsa. Cortex of ovaryi. Follicular fluid2. Sertoli cellsb. Ovarian follicleii. Progesterone3. Granulosa cellsc. Testisiii. Attachment of sperm bundle4. Cells of corpus luteum d. Seminiferous tubulesiv. Testosterone

Step-by-step Solution