In almost all cases, DNA is found has a double-helix.
It's only some bacterial species that have single-helix DNA.
The double helix
James Watson & Francis Crick were the ones who found out the double helix structure of the DNA molecule.
Both DNA and RNA can exist in the double helix form, but only DNA is completely stable as a double helix. The double helix RNA is usually only short "hairpin" sections folding back on itself, never the long essentially linear form of double helix DNA.
DNA is organized in a double-helix fashion.
DNA is a double helix, or a twisted ladder.
Double Helix
A double helix
a double helix
The double helix
Francis Crick and James Watson
DNA
DNA
DNA, and the shape is also known as a double helix.
It is a double helix shape. Go to google. Type in 'google images'. Then say 'double helix'. Not hard!
The whole DNA strand is a double helix.
In the DNA. The term "double helix" refers to the structure of DNA.
double helix