E. coli DNA polymerase IlI: represents over 90% of the DNA polymerase activity in E. coli cells. requires a free 5'-hydroxyl group as a primer. is the primary polymerase in chromosomal DNA replication. acts efficiently at nicks in DNA.

A DNA strand was sequenced using the Sanger method (https://www.youtube.com/watch?v=KTstRrDTmWI). The reaction tube contained the DNA strand, fluorescently labelled dideoxynucleotide triphosphates (ddATP – yellow, ddGTP – green, ddCTP – blue, ddTTP - red), deoxynucleotide triphosphates, DNA polymerase, or its Klenow fragment. Synthesis of DNA is allowed to proceed, and the results are shown on the right: 15 14 13 12 11 10 (a) What is the sequence of the copy and the template strands? (b) If the template strand were in the 5'-3' direction, what will be the sequence of the DNA copy? Nucleotide Length

Why should a student use the SQ3R method?

Make the complementary strand for the following DNA template and label both strands as 5’ to 3’ or 3’ to 5’ (hint: determine first if P = phosphate or –OH are the 5’ or 3’ end of the strand). Draw an arrow showing the direction of synthesis of the new strand. How many total hydrogen bonds are in this double strand of DNA? Template : P- AGACTTG-OH New strand :