Q. Zygote is formed by the process of :
(a) Isogamy
(b) Anisogamy
(c) Oogamy
(d) Syngamy
Solution :
Correct option : D
The process of fusion between a haploid male nucleus and an egg nucleus is known as amphimixis. It is also known as syngamy or fertilization which leads to formation of a diploid zygote. It leads to the recombination of character which causes variation. It is a mode of sexual reproduction. A single sperm fuses with the ova and releases its nuclei and cellular contents in the ovum. The condition when the multiple sperm fuses with a single ovum is known as polyspermy.
So, the correct answer is option D.
