Why is the heart slightly on the left side of the body for most people? Why is DNA almost always a right-handed helix? Same ...

Note how its structure resembles a twisted ladder. Note also that DNA with a "left-handed" twist, as this has, is a special kind of DNA known as Z-DNA. The DNA molecule is made up of four bases ...

What did the duo actually discover? Many people believe that American biologist James Watson and English physicist Francis Crick discovered DNA in the 1950s. In reality, this is not the case.

Yet in our infinite human arrogance lies the capacity to defy that order. What happens if we make mirror organisms with left-handed DNA and right-handed proteins? Proponents of pursuing this research ...