MOOC Advertisement

Learn More:
Get An Introduction to Reproduction

Learn more about the the science of reproduction. Dr. Teresa Woodruff, creator of Repropedia, is offering a free online course exploring the world of reproduction.

Get Started!


A blastomere is a single cell of a pre-implantation stage embryo formed by cell division of the zygote following fertilization. Using the specific assisted reproductive technology known as preimplantation genetic diagnosis, a single blastomere is removed from an embryo, and genetic testing is performed on this cell, so that embryos free of genetic abnormalities are transferred back into the recipient.