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Model Paper 6 — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETModel Paper 64 Marks
MCQ
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R:
Assertion A: In gymnosperms the pollen grains are released from the microsporangium and carried by air currents.
Reason R: The pollen tube carrying the male gametes grows towards orchegonia in the ovules and discharge their contents near the mouth of archegonia.
Choose the correct answer from the options given below:
  • A
    A is false but R is true.
  • B
    Both A and R are true and R is the correct explanation of A.
  • ✓
    Both A and R are true but R is NOT the correct explanation of A.
  • D
    A is true but R is false.
✓

Answer

Correct option: C.
Both A and R are true but R is NOT the correct explanation of A.
(C)
In gymnosperms, the pollen grain is released from the microsporangium. They are carried in air currents and come in contact with the opening of the ovules borne on megasporophylls. The pollen tube carrying the male gametes grows towards archegonia in the ovules and discharge their contents near the mouth of the archegonia.

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