Question

What is a zygote and pollen tube?

Answer 1

Zygote:

• It is the initial cell formed when two gamete cells fuse by means of sexual reproduction.
• In multicellular organisms, it is the earliest developmental stage of the embryo.
• In single-celled organisms, the zygote divides to produce offspring, usually through meiosis.

• It is the first cell of the life.

Pollen tube:

• A pollen tube is a tube like structure formed by a pollen grain that transports the male gametes from the pollen grain to the ovule.
• The function of the pollen tube is to carry male gametes towards the ovary through stigma and style.