What is the diploid cell produced by the fusion of two gametes called?

• A. Zygote
• B. Haploid cell
• C. Somatic cell
• D. Gamete

Answer: (A)

When two gametes fuse during fertilization, their nuclei combine to restore two complete sets of chromosomes—one from each parent. The resulting diploid cell is called a zygote. It starts the organism's development and will divide by mitosis to form all tissues and organs. A haploid cell, in contrast, has only one set of chromosomes and refers to a gamete itself, not the product of fusion. A somatic cell is a body cell, usually diploid, but it isn’t formed by the fusion of two gametes. A gamete is the haploid reproductive cell before fusion.