Which of the following statements is incorrect?

  • A
    Unisexuality of flowers promotes cross-pollination.
  • B
    Male gametophytes were developed by Guha and Maheshwari.
  • C
    Morphological barriers are absent in Gloriosa flowers.
  • D
    All of the above

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Identify the correct modes of entry of the pollen tube in the diagrams given below.

In angiosperms, $.......$ carries the male gametes and $.......$ carries the egg cell.

The condition in which male and female reproductive parts are present on different plants is called:

Which of the following statements are correct?

Contrivances for self-pollination are:

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