Pre-Test Unknowns 5/23

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V-vocab

P-passage

I-Interpret

A-Apply

F-Funtion

Q-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