Q24 / 120 · NEET 2012 (Mains) · Botany

Which one of the following statements is wrong?

  • Correct answer
    A
    When pollen is shed at two-celled stage, double fertilization does not take place
  • B
    Vegetative cell is larger than generative cell
  • C
    Pollen grains in some plants remain viable for months
  • D
    Intine is made up of cellulose and pectin

Solution

Before pollination the protoplast of pollen grain divides into two unequal cells small generative cell and large tube or vegetative cell. In some species the generative cell divides into two male gametes prior to dehiscence of pollen grain. Therefore at the time of pollination the pollen grain is either 2-celled or 3-celled.

Hence, the correct answer is option: 'A'.

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