phosphate
The rugs of DNA are Adenine, Guanine, Cytosine, and Thymine. When DNA replication occurs and the ladder has to be broken, an enzyme called "helicase" starts at the replication fork and unwinds the DNA ladder. Helicase breaks the rugs of DNA.
two nitrogenous bases linked together in the middle
The Nucleotides form the ladder rungs.
it was ...............
phosphate molecule
Nitrogen is found in a number of molecules but perhaps most famously it is found in the DNA molecule.
DNA is a molecule. There are also a bunch of proteins/molecules called histones that organise the DNA molecule into a condensed state.
Dna has a hydrophilic and hydrophobic side, also you have to remember that DNA is a polar molecule
Watson and Crick
phosphate
Genetic code of the cell is found in a long molecule known as DNA.
the DNA molecule split down the middle,where the bases meet. The bases on each side of the molecule are used as a pattern for a new strand.