Cord Blood Stem Cells Information

embryonic stem cells come from what kind of embryo?

I know that embryonic stem cells are stem cells derived from the inner cell mass of an early stage embryo known as a blastocyst. as Wikipeida says it. But in what kind of embryo do they obtain the stem cells from? Are they the embryos fertilized in lab or donated by people?

Public Comments

1. The blastocysts used for creating ESC lines are derived from eggs that were fertilized in in vitro fertilization clinics but never implanted in a woman’s uterus. The resulting embryos were frozen and later donated for research purposes with the informed consent of the donors. Pluripotent stem cells are isolated from human embryos can be used to create pluripotent stem cell "lines" —cell cultures that can be grown indefinitely in the laboratory. Umbilical cord stem cells are also donated.