REPRODUCTION
SEXUAL REPRODUCTION IN FLOWERING PLANTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Bees help to provide nectar for flowers.
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Male cells from pollen tube fuse with ovules in the ovary.
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Pollen grains get suck on the stigma
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The wind blows pollen grains from flower
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Detailed explanation-1: -The pollen tube opens into the ovule through the micropyle and bursts into the embryo sac. Here, the male nucleus unites with the nucleus of an egg inside the ovule forming a diploid zygote, which later swells up and develops into a fruit.
Detailed explanation-2: -Fertilization: The fusion of male and female gamete to form a zygote is called fertilization. As a result of pollination, pollen grains are deposited on the stigma of the carpel, and it grows into a pollen tube. The Pollen tube pierces the stigma and grows through style.
Detailed explanation-3: -The pollen tube penetrates the style and reaches the ovary. Male nucleus is transferred through this pollen tube. Finally, fusion of male and female nuclei takes place inside the ovary. This step is called fertilization.