AS Quiz06 2007-2 CH385

AS Quiz06 2007-2 CH385 - b. A region of DNA on the...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
CH385 Introduction to Cell Biology Name _________________________ Quiz #6 (30 points) AY 2007-2 MULTIPLE CHOICE: 1. (4 pts) What is the function of primase? a. It opens the double helix to allow for replication. b. It adds RNA nucleotides to start synthesis. c. It adds DNA nucleotides to start synthesis. d. It seals the phosphodiester backbone. 2. (4 pts) What is the function of helicase? a. It opens the double helix to allow for replication. b. It adds RNA nucleotides to start synthesis. c. It adds DNA nucleotides to start synthesis. d. It seals the phosphodiester backbone. 3. (4 pts) Why are the leading strand and lagging strand of DNA synthesized in slightly different ways? a. The strands are not synthesized differently. b. The strands are anti-parallel. c. The leading strand is DNA the lagging strand is RNA. d. The leading strand is from Venus and the lagging strand is from Mars. 4. (4 points) What is required for homologous recombination to occur? a. Nothing special.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: b. A region of DNA on the chromosome and extra chromosomal piece of DNA with very similar sequences. c. A very short but specific DNA sequence on the chromosome. d. A plasmid. 5. (4 points) What enzyme is required for insertion sequences to be inserted? a. helicase b. DNA synthase c. ligase d. transposase CH385 Introduction to Cell Biology Name _________________________ Quiz #6 (30 points) AY 2007-2 6. (3 points) Exposure to sun light causes DNA damage by a. realigning the DNA base pairs. b. forming thymine dimmers in the DNA strand. c. interfering with RNA synthesis. 8. (3 points) What are the consequences of the process seen in the figure? a. There are no consequences. b. Gene 2 functions better than before the transposition. c. Gene 2 is disrupted. d. none of the above. Extra credit (3 points) Why is primase required for DNA synthesis? DNA polymerase III can not start strand synthesis de novo. It requires an existing strand....
View Full Document

Page1 / 2

AS Quiz06 2007-2 CH385 - b. A region of DNA on the...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online