what process produces zygotes what cells join or fuse
The cells from each parent that combine to form the zygote are called gametes. In humans, the male gamete is called sperm, and the female gamete is called an egg. When the gametes join they form a cell called a zygote.he type of cell division that produces gametes with half the normal chromosome number is called meiosis. It is used to produce cells for repair and asexual reproduction. Gametes contain different genetic information to each other and to the parent cell. Meiosis is responsible for causing genetic variation.