1. (a) Describe the process of fertilization in a flower.
(b) Why is the number of pollen grains produced always much more
than the number of eggs produced?
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The process of fertilization in flowering plant is known as double fertilization. It takes place in embryo sac.
The pollen tube enters the egg apparatus that contains one egg cell and two synergid
Release of two male gametes from the pollen tube takes place.
One male gametes fuses with the egg cell
The other male gametes fuses with the two polar nuclei present in the center of embryo sac.
The seeds from one flower are transfered by pollination to another flower then fertilization occurs
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