Explain the development of human embryos
The Fusion of the sperm and the egg in humans results in the formation of the diploid structure called a zygote. The zygote undergoes mitotic division as it travels through the oviduct into the uterus to form 2,4,8,16 daughter cells which are called blastomeres. The stage is called a morula. The Morula divides further and differentiates into blastocysts. The outer layer of blastomeres called the trophoblast gets attached to the endometrial layer of the uterus. The blastocysts are divided and encased by the uterine wall, which is referred to as implantation. The embryo is formed by the inner layer of blastomeres in the blastocysts
