Bio 93 Lecture 14

At the end of each replication bubble is a

What are helicases?

What do single-strand proteins do?

What do Topoisomerase do?

What enzymes catalyze the elongation of new DNA at a replication fork?

Most DNA polymerases require a ____ and a template strand

Which enzyme can start an RNA chain from scratch and adds RNA nucleotides one at a time using DNA as a template?

The leading strand moves ____ the replication fork

The leading strand is dependent on the actions of _____ _______

The lagging strand moves _____ from the replication fork

The lagging strand is synthesized as a series of fragments callled _____ ______

Okazaki fragments are later joined by

____ ______ proofread newly made DNA, replacing any incorrect nucletides

Eukaryotic chromosomal DNA molecules have special nucleotide sequences at their ends called

Tolemeres _____ the erosion of genes near the ends of DNA molecules