AP BIOLOGY

Detailed explanation-1: -The DNA molecule is a polymer of nucleotides. Each nucleotide is composed of a nitrogenous base, a five-carbon sugar (deoxyribose), and a phosphate group. There are four nitrogenous bases in DNA, two purines (adenine and guanine) and two pyrimidines (cytosine and thymine).

Detailed explanation-2: -Nucleotide A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base. The bases used in DNA are adenine (A), cytosine (C), guanine (G) and thymine (T).

Detailed explanation-3: -A nucleotide consists of a pentose sugar molecule, a nitrogenous base, and a phosphate group.

Detailed explanation-4: -DNA and RNA are composed of nucleotides that are linked to one another in a chain by chemical bonds, called ester bonds, between the sugar base of one nucleotide and the phosphate group of the adjacent nucleotide.

Detailed explanation-5: -Nucleic acids are polymeric molecules. They are composed of nucleotide building blocks that are linked together by phosphodiester bonds. The nucleotides are composed of a nitrogenous base, a sugar and a phosphate group.