Question

A male gamete x unites with a female gametes y to form a single cell z

(a) name the process
(b) identify x, y and z​

Answer 1

1. Fertilisation
2. x is sperm ... y is ovum.... z is zygote

Answer 2

(a) The process is known as fertilization.

(b) X is the sperm having either the X or Y chromosome.

Y is the egg or ovum having an X chromosome.

Z is a zygote which can be either XX or XY.

* The fusion of a male and female gamete is called fertilization. In this process, two haploid cells fuse to form a diploid daughter cell.

* The sperm penetrates the wall of the ovum to fuse with the nucleus.