The DNA strands are held together by hydrogen bonds between complimentary base pairs.
A double helix is often referred to as a "twisted ladder." It consists of two spirals bound together.
Nucleotides which formed double helix.
Hydrogen bonds
helix
Double helix
nucleotides!
In the DNA. The term "double helix" refers to the structure of DNA.
Two single chains bond together. The bonded chains twist together to form a double helix.
One could find information on the double helix in science books, more specifically biology. The term double helix is in reference to the DNA molecules one has.
Generally hydrogen bonds between the different base pairs holds the double helix together.
The double helix
The rungs of the DNA double helix are made up of alternating deoxyribose sugar molecules and phosphate molecules. Please refer to the related link below.