Fundamentholfundamenthol
NEET2025Biology
Q.

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 :

  1. A

    A, C, D and E only

  2. B

    A and E only

  3. C

    B and C only

  4. D

    B, C, D and E only

Solution

Standard milestones of human gestation:

  • (A) Correct — most major organ systems are formed by the end of the first trimester (~12 weeks).
  • (B) Incorrect — not by 8 weeks.
  • (C) Correct — the heart begins to form after one month of gestation.
  • (D) Correct — limbs and digits develop by the end of the second month.
  • (E) Correct — first movements of the foetus and appearance of hair on the head are typically observed in the fifth month.

A, C, D and E.

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