A zygote is the very first stage of a new living being that forms when an egg cell and a sperm cell combine. It is the start of a baby's development. Full definition
Removal of the nuclei in the absence of sucrose and use of zygotes from vitrified patient rather than donor oocytes were beneficial, and led to mitochondrial carryover levels below 2 % in the majority of blastocysts, and below 5 % in all of them. (sciencemediacentre.org)
The group also detected that the WOX8 protein was only synthesized in small amounts in zygotes absent of both SSP (related to the father) and HDG11 / 12 (related to the mother). (sciencedaily.com)
The reaction of any person who begins to leaf through this illustrated chronicle of human gestation will surely be extraordinary as well, and the book should be helpful in promoting «bonding» of all readers with all unborn babies, as it graphically documents the contention (made, for example, in this issue by William Saunders) that from zygote to embryo to fetus to birth, each human organism is nothing but human. (firstthings.com)