Pre-Test Unknowns 5/23

V-vocabP-passageI-InterpretA-ApplyF-FuntionQ-Image/structure/picture

Chromatin (V) complex of DNA and protein that make up chromosomes Histone (V) chief protein components of chromatin acting as spools around DNA winds; gene regulation Cytosine (A) pyrimidine derivative; forms 3 H-bonds with guanine tRNA-Transfer at ribosomal site during translation rRNA-ribosomal synthesized in the nucleolus, central component of the ribosome ribosome-protein manufacturer of all living cells purine (Q) heterocyclic aromatic has pyrimidine with imidazole ring Pyrimidine (Q) heterocyclic aromatic with N para at 1 and 3 of benzene Adenosine (V/Q) nucleoside composed of adenine attached to a ribose moiety via a beta-N9-glycosidic bond Glycosylamines made from nucleobase + deoxy or ribose rings Nucleosides Complementarity (v) base pairs (example) from non-covalent connections H-bonding Nucleosome (v) repeating subunits of chromatin; DNA and histones supramolecular stacked arrangement of aromatic molecules: stacking Oligonucleotide short sequences of nucleotides with 20> bases DNA denaturation (melting) Supercoil DNA segment under twist strain, closed in a circle to move freely and then contorts to a new shape. A-right handed and shorter, B-most common (also right handed) Z DNA-Left handed zig zag Quadraplex (G-tetrads, G4--DNA) nucleic acid sequences, rich in guanine, form 4 stranded structures