Select all that apply. The Klenow fragment: has primase activity. is an E. coli DNA polymerase fragment. has exonuclease activity. is RNA-dependent DNA polymerase. has polymerase activity.

A primer of some sort must be synthesized so that polymerization can commence under the direction of DNA polymerase III. Surprisingly, RNA, not DNA, serves as the primer. Give your on this ?

Describe three major differences between leading and lagging strand synthesis. What feature of DNA polymerase results in the leading and lagging strands being synthesized differently

Give typed full explanation

SSBs are:   single-stranded DNA binding proteins that prevent re-annealing   supercoil stabilizing bodies.   single-stranded bodies called Okazaki fragments.   substrates for DNA ligases.

DNA polymerase error rates can be 10-8 to 10° per nucleotide, and mutations in the repair functions of DNA polymerases that increase error rates can cause reduced survival phenotypes. Yet RNA polymerase error rates can be as high as 3 x105. Why is it so much more important for DNA polymerase to be accurate than RNA polymerase? Be brief.

A group of unstable DNA polymerases that produce short DNA sequences when the normal polymerase cannot function appropriately.    DNA intercalating Polymerases Bypass Polymerases Transversion Polymerases Homolgous Recombination Polymerases