However, the sex of the embryo is determined genetically at the time of fertilization, the gonads do not acquire male or female morphological characteristics until the seventh week of development, Gonads appear initially as...
Human development starts at fertilization. Fertilization is the process by which the spermatozoon (a male gamete) and the oocyte (a female gamete) unites to give a single cell, the zygote. The spermatozoon develops in...
