Nucleic Acids (bio week 2)

Nucleic acids

DNA and RNA (polymer)

monomers of nucleic acids

nucleotides

3 parts of a nucleotide

pentose sugar, nitrogenous base, phosphate group

nucleic acid polymerization

condensatoin reaction resulting in one molecule of water

DNA vs RNA

DNA lacks an oxygen in sugar

how are bonds (dimers) formed

phosphodiester bonds formed when hydroxyl group of one monomer reacts with hydrogen atom of another

primary structure of nucleic acid

order of nucleotides in polymer strand (5' to 3' ends)

secondary structure of DNA

double helix that are antisense (antiparallel/opposite directions, complementary/base paired) and interact via h bonds

DNA tertiary structure

packing with histone proteins and supercoiling (compacting twisting)

RNA secondary structure

formed by h bonding between nitrogenous bases often with a single strand of RNA (intra

RNA tertiary structure

global 3d structure (more complex folding) mediated by intermolecular forces between multiple parts of RNA strand (h bonds and ionic bonds etc)