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Model Paper 7 — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETModel Paper 74 Marks
MCQ
Match the features of developing embryo given in column I with their time of formations given in column II.
Column I (Features of developing embryo)Column II (Time of Formation)
(A) Heart(i) End of 24 weeks
(B) Formation of eyelashes(ii) Fifth month
(C) First movement(iii) End of 12 weeks
(D) Formation of major organs(iv) After 1 month of pregnancy
  • A
    A - (i), B - (ii), C - (iii), D - (iv)
  • B
    A - (ii), B - (iii), C - (i), D - (iv)
  • C
    A - (iv), B - (iii), C - (i), D- (ii)
  • ✓
    A - (iv), B - (i), C - (ii), D - (iii)
✓

Answer

Correct option: D.
A - (iv), B - (i), C - (ii), D - (iii)
(D)A- (iv), B- (i), C - (ii), D- (iii)
Explanation:
In human beings, after 1 month of pregnancy, the embryo's heart is formed. By the end of the second month of pregnancy, the foetus develops limbs and digits. By the end of 12 weeks (first trimester), most of the major organ systems are formed. The first movements of the foetus and appearance of hair on the head are usually observed during the fifth month. By the end of 24 weeks (second trimester), the body is covered with fine hair, eyelids separate, and eyelashes are formed.

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