lesson summary
The Components of DNA is a nucleic acid made up of nucleotides joined into long strand or chains by covalent bonds. Nucleotides may be joined in any order.
A DNA nucleotide is a unit made of a nitrogenous base,a 5-carbon sugar called deoxyribose,and a phosphate group.
DNA has four kids of nitrogenous bases:adenine,guanine,cytosine,and thymine.