Trace the development of the zygote upto its implantation in the uterus.
Trace the development of the zygote upto its implantation in the uterus.

Answer: Zygote splits quickly through cleavage, a type of mitotic division that produces 2, 4, 8, or 16 daughter cells known as blastomeres. A morula is an embryo with 8–16 blastomeres. The morula transforms into a blastocyst, a huge mass of cells that travels deeper into the uterus. The blastomeres in the blastocyst are organised into an exterior layer termed trophoblast and an inner cell mass, which is a clump of cells linked to trophoblast. 

The endometrium’s cells adhere to the trophoblast layer, and the inner cell mass gives rise to the embryo. Endometrium cells divide quickly and cover the blastocyst. As a result, the blastocyst is implanted in the endometrium of the uterus, resulting in pregnancy.