Add Yahoo as a preferred source to see more of our stories on Google. As an evolutionary biologist whose career has focused on how embryos develop in a wide variety of species over the course of ...

Scientists are exploring ways to mimic the origins of human life without two fundamental components: sperm and egg. They are coaxing clusters of stem cells – programmable cells that can transform into ...

The article examines the emerging use of genomic testing to predict complex traits in embryos, such as intelligence or the ...

Ancient viruses are embedded everywhere in the human genome. Estimates range, but it's thought that about eight percent of the human genome could be made up of these ancient retroviruses, which are ...

Berlin, Germany: Aneuploidy (the presence of an abnormal number of chromosomes) in embryos is a major cause of impaired embryo development, leading to conditions such as Down syndrome, as well as to ...

Most research in human genetics has historically focused on people of European ancestries—a long-standing bias that may limit the accuracy of scientific predictions for people from other populations.

Selecting embryos for complex traits or disease risks faces high uncertainty, raising urgent ethical risks that require ...