No, binary fission is not the fusion of an egg and a sperm. Binary fission is a form of asexual reproduction commonly seen in single-celled organisms where the parent cell divides into two identical daughter cells. It is a simple division process that does not involve the fusion of gametes (sperm and egg) as in sexual reproduction. Sexual reproduction, on the other hand, involves the fusion of specialized cells called gametes, specifically an egg and a sperm, to form a new organism.
