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WAEC Biology 2002 Question 25

Question 25

Reproduction in Plants

In flowering plants, fertilization would occur when

  1. A.the pollen grows downwards penetrating the style
  2. B.a pollen grain is transferred to the stigma
  3. C.one of the nuclei inside the pollen tube fuses with the ovum
  4. D.the nucleus of the pollen tube divides.
Show the answer and explanation

Answer: C (one of the nuclei inside the pollen tube fuses with the ovum)

Explanation

Fertilization is the fusion of a male nucleus with the egg (ovum). Transfer of pollen to the stigma is pollination, and pollen tube growth comes before fertilization.