The double helix is a description of the molecular shape of a double-stranded DNA molecule. In 1953, Francis Crick and James Watson first described the molecular structure of DNA, which they ...

In both cases, replication occurs so quickly because multiple polymerases can synthesize two new strands at the same time by using each unwound strand from the original DNA double helix as a template.

so that matching base pairs interlocked in the middle of the double helix to keep the distance between the chains constant. Watson and Crick showed that each strand of the DNA molecule was a ...

The double helix structure of ... instead of the four bases from which DNA is constructed linking to each other like normal (adenine to thymine on the opposite strand, cytosine to guanine ...

Now, collaborating with Jim Watson, who had returned from Cambridge, I was taken with a challenge put forth in his famed double-helix manuscript. 1 In their 1953 publication on the DNA double helix, ...

The two strands of the DNA helix are unzipped by breaking of the ... RNA polymerase moves along the DNA strand. Free RNA nucleotides form hydrogen bonds with the exposed DNA strand nucleotides ...