NASA scientists found amino acids, key minerals, and nucleobases for DNA in samples from the OSIRIS-REx asteroid mission.

The process of transcription can be visualized by electron microscopy (Figure 1 ... Once transcription is initiated, the DNA double helix unwinds and RNA polymerase reads the template strand ...

Watson and Crick ultimately used Franklin's images, along with their own evidence for the double-stranded nature of DNA, to argue that DNA actually takes the form of a double helix, a ladder-like ...

All forms of Earth life have specific chemicals in their makeup, such as amino acids and sugars. Scientists have known that ...