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

Given below are two statements with respect to gastrulation.
Statement-I: Root of amniotic cavity is lined by amniogenic cells, which divides to form chorion.
Statement-II: Chorion is an embryonic membrane that participates in development of the embryo.
Choose the most appropriate answer from the options given below.

A Both Statement-I and Statement-II are correct.
B Statement-I is correct but Statement-II is incorrect.
C Both Statement-I and Statement-II are incorrect.
D Statement-I is incorrect but Statement-II is correct.

Verified Solution

Answer & Solution

Correct Answer

(C) Both Statement-I and Statement-II are incorrect.

Step-by-step Solution

Detailed explanation

Root of amniotic cavity is lined by amniogenic cells, which divides to from amnion. Chorion is an embryonic membrane that contributes to the formation of placenta.

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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Column I		Column II
A.	Chlorosis	I.	Boron
B.	Brown heart disease	II.	Zinc
C.	Die-back of shoots	III.	Magnesium
D.	Malformed leaves	IV.	Copper