Question

3. Synthesis of telomeres requires the enzyme ------------, which is a type of ---------------. a. telomerase; helicase b. DNA polymerase; ligase c. telomerase; reverse transcriptase d. ribonuclease; RNA-specific nuclease

____ 4. An Okazaki fragment is a a. piece of DNA that is synthesized in the 3’5’ direction b. small segment of DNA that is an intermediate in the synthesis of the lagging strand c. fragment of DNA resulting from an endonuclease reaction d. fragment of RNA that is a subunit of the 30s ribosome

____ 5. In the nucleus, DNA is wrapped around _____ to form _____. a. histones; nucleosomes b. polyarginine; 30-nm fibers c. polyribose; euchromatin d. ribosomes; heterochromatin e. none of the above 2

____ 6. Besides the obvious role of keeping DNA in a single strand state, what do single-strand binding proteins do? a. prevent supercoiling b. aid DNA polymerase with DNA binding c. all of the above d. aid in the formation of hairpin structures e. protect single stand DNA from nucleases

Answer 1