MeSH definition : The division of a ZYGOTE into two parts, each of which is capable of further development.; The division of a ZYGOTE into two parts that are each capable of further development
into two distinct individuals, both that have the same genetic makeup.;
The division of a ZYGOTE into two parts, each of which is capable of further development. The division of a ZYGOTE into two parts that are each capable of further development
into two distinct individuals, both that have the same genetic makeup.