Development of Pollen Grain and Formation of Male Gamete

Of and in a to was is for as on by he with s that at from his it an were are which this also be has or. Out of two male gametes present in pollen tube one fuses with egg to form zygote.

Class 12 Biology Chapter 1 Reproduction In Lower And Higher Plants Biology Textbook Biology Activity Biology Diagrams

This fusion is called fertilization.

. Had first one their its new after but who not they have. Fertilization is the process by which male and female gametes are fused together initiating the development of a new organism. The male gamete or sperm and the female gamete egg or ovum are specialized sex cells which fuse together to begin the formation of a zygote during a process called sexual reproduction.

Only one pollen grain randomly fertilizes one egg cell resulting in the formation of a cell serving as the foundation of the hybrid now zygote thus. Fruit development without fertilisation is called parthenocarpy. As in pineapples and bananas.

After fertilization the zygote divides several times to form an embryo within the ovule. UNK the. The other male gamete nucleus fuses with the polar nucleus to form a triploid nucleus which forms the primary endosperm.

Male gametophyte pollen grain. A tube grows out of pollen grain and travels through the style to reach the female germ-cells present in ovule in the ovary.

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