Multiple choice

Which one of the following is not a correct explanation of cross-pollination?

  1. The pollen grains are transferred from one flower to another flower situated on the same plant

  2. The pollen grains are transferred from one flower to another flower, of another plant of the same species

  3. The pollen grains of male flower are transferred to the stigma of the female flower

  4. The pollen grains of one flower are transferred to the stigma of the same flower
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D Correct answer
Explanation

Cross pollination is the transfer of pollen grains of a male flower to the stigma of female flower, which occurs either on the same plant (monoecious) or on the different plant (dioecious).

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