Новости

What does the growth and development of an embryo look like in the first days? Our embryologist Goran Stefanovski explains what happens in the laboratory at each stage of this process. After fertilization, the first sign of successful fusion of the sperm with the egg is the formation of the polar body and the beginning of the pronuclear phase. The two pronuclei are seen in this early stage, before the zygote begins to divide.