It’s common knowledge that cloning has broken the bonds of sci-fi, and that labs around the world are experimenting with cloning techniques. But how exactly does cloning work, and why haven’t we heard ...

In this slide show, Harvard stem cell scientists take you through the process of creating embryonic stem cells using a cloned mouse embryo. Scientists generally refer to the technique as "somatic cell ...

DNA, which contains the genetic information of an organism, consists of long chains of nucleotides. In order to study the functions based on the sequence of these building blocks, DNA molecules must ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. When photographer Courtney Udvar-Hazy's wolf-dog hybrid tragically died ...

Ten years ago, Scottish scientists proved an animal could be cloned — and raised a burning question: Would a human be next? Before Dolly the cloned sheep, who was euthanized at age 6 due to a lung ...