Nucleotide Structure & Nucleic Acid polymerization

Question 1

what 3 components are present in all nucleotides

Answer 1

nitrogenous bases, phosphate group, deoxyribose

Question 2

what are the two classes of nitrogenous bases and what bases are within each class? how can you tell the two classes apart visually

Answer 2

purines (adenine & guanine) and pyrimidines (cytosine, thymine, uracil); purines are double ringed while pyrimidines are single ringed

Question 3

what are the two possible 5 carbon sugars that can be part of nucleotide? how do they differ structurally

Answer 3

deoxyribose & ribose, ribose has a hydroxyl group while deoxyribose does not

Question 4

what kind of reaction links nucleotides together in chitin

Answer 4

phosphodiester bonds