PS101 Study Guide - Midterm Guide: Thymidine Triphosphate, Restriction Enzyme, Topoisomerase
Document Summary
Rna sugar. stacking present in the dna helix are: Nucleosides are found in dna, whereas nucleotides are found in. A nucleotide is a nucleoside with a phosphate ester linked to the. None of the above. peptide linkage. phosphodiester bond. amide bond. phosphoanhydride bond. Dna polymerase has a crucial role in dna synthesis. Dna synthesis in e. coli proceeds by a conservative mechanism. Dna synthesis in e. coli proceeds by a semiconservative. Dna synthesis requires datp, dctp, dgtp, and dttp. newly synthesized dna in e. coli has a different base composition than the preexisting dna. mechanism. Primases synthesize a short stretch of dna to prime further synthesis. E. coli dna polymerase i is unusual in that it possesses only a 5" to. Endonucleases degrade circular but not linear dna molecules. The large subunit contains rrna molecules, the small subunit does. The rna in ribosomes plays a structural, not catalytic, role. There are about 25 of them in an e. coli cell.
