The DNA molecule was composed of the traditional sugar backbones and nucleotide pairs, but rather than the well-known right-handed spiral of the double helix structure, famously discovered by Watson ...

In Earth life, the amino acids are always "left-handed," and sugars, which partly make up the backbone of DNA, are always right-handed, giving the double helix its signature twist to the right.

Certain DNA sequences can form structures other than the canonical double helix. These alternative DNA ... largely repetitive DNA, was left undetermined because the available technology and ...

Here is a view of the double helix -- the subject of Rosalind ... structure resembles a twisted ladder. Note also that DNA with a "left-handed" twist, as this has, is a special kind of DNA known ...

In switchback DNA, right-handed half-turns are arranged in such a way that the molecule as a whole is a left-handed double helix. This is because if you trace the backbone of DNA along the helix ...

that the DNA molecule exists in the form of a three-dimensional double helix. More than 50 years passed before the significance of Miescher's discovery of nucleic acids was widely appreciated by ...

In 1953, Francis Crick and James Watson described the molecular shape of DNA as a "double helix." Double-stranded DNA is composed of two linear strands that run opposite to each other, known as ...

To find out more, we analysed the DNA of more than 1.7 million people and discovered 41 regions of the genome associated with being left-handed and another seven associated with being ambidextrous.