More than half of your body is not human ... The human genome - the full set of genetic instructions for a human being - is made up of 20,000 instructions called genes. But add all the genes ...

In other words, a piece of DNA that is 1 meter long will become a "string-of-beads" chromatin fiber just 14 centimeters (about 6 inches) long. Despite this shortening, a half-foot of chromatin is ...

DNA extracted from bone fragments found in the ... "Out of this very little number we find one individual that has half-and-half mixed ancestry, " Dr Slon told BBC News. When other studies are ...

Afterward, only half of the new DNA double helices would be hybrids; the other half would be completely new. Every subsequent round of replication therefore would result in fewer hybrids and more ...