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  • Length of pollen tube depends on the distance between (a) pollen grain and upper surface of stigma (b) pollen grain on upper surface of stigma and ovule (c) pollen grain in anther and upper surface of stigma

Length of pollen tube depends on the distance between
(a) pollen grain and upper surface of stigma
(b) pollen grain on upper surface of stigma and ovule
(c) pollen grain in anther and upper surface of stigma
(d) upper surface of stigma and lower part of style

Answers (1)

Answer: D

Solution: The pollen tube helps in transporting pollen grains to the ovule inside which eggs are present. The pollen germinate on the upper surface of stigma. Hence, the length of pollen tube will depend on the distance between upper surface of stigma and lower part of ovule and it will ensure that pollen reaches the stigma and pollination is successful

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