Find the correct statement : (A) In human pregnancy, the major organ systems are formed at the end of 12 weeks. (B) In human pregnancy the major organ systems are formed at the end of 8 weeks. (C) In human pregnancy heart is formed after one month of gestation. (D) In human pregnancy, limbs and digits develop by the end of second month. (E) In human pregnancy the appearance of hair is usually observed in the fifth month. Choose the correct answer from the options given below :

Human Reproduction PYQ — NEET 2025 · Q21 with Solution

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Correct answer: B

In a human female's pregnancy.

$\bullet$ By the end of 12 weeks ( $1^{\text {st }}$ trimester), most of major organ systems are formed (not by end of 8 weeks).

$\bullet$ After one month of pregnancy, the embryo's heart is formed.

$\bullet$ By the end of second month of pregnancy, the foetus develops limbs and digits.

$\bullet$ The first movements of foetus and appearance of hair on head are usually observed during the fifth month.