The double helix is a description of the molecular shape of a double-stranded DNA molecule ... also called base pairs. Two types of base pairing occur: nucleotide A pairs with T, and nucleotide ...

What makes a shape symmetrical? Find out more about symmetrical 2D shapes. What is an angle? Discover the different types of angles and how to make sure you get the biggest slice of pizza.

In 1948, Linus Pauling discovered that many proteins take the shape of an alpha helix, spiraled like a spring coil. In 1950, biochemist Erwin Chargaff found that the arrangement of nitrogen bases ...

Researchers at the Chambers University of Technology have discovered that water is why DNA strands are wrapped around each other and have a helix shape. Understanding how DNA repairs itself could ...