Ch.11 online quiz

In a sample of double-stranded DNA from a human, you have determined that 20 percent of the nitrogenous base is adenine. What percentage should be cytosine?

Answer: B

Which of the following statements concerning DNA replication is true?

Answer: D

Which of the following is not required for DNA replication?

Answer: D

In many eukaryotes, there are repetitive sequences at the ends of chromosomes called telomeres. After successive rounds of DNA replication, the _ strand becomes shorter. In some cells, an enzyme called _ repairs the shortened strand.

Answer: A

Which of the following statements does not summarize the molecular architecture of the DNA molecule?

Answer: A

Eukaryotic chromosomes

Answer: E

In Meselsohn-Stahl's experiments, they showed that DNA replication is semiconservative. This is because

Answer: D

Eukaryotes only have one origin of replication.

Answer: B

Which statement about the double helical structure of DNA is false?

Answer: D

In DNA polymerization,

Answer: D

Why are ddNTPs used for DNA sequencing?

Answer: E

To show that DNA in cell extracts was responsible for genetic transformation in pneumococcus, important corroborating evidence was that ___ also destroyed transforming activity.

Answer: B

The following events occur in excision repair of DNA. What is their proper order? (1) Base-paired DNA is made complementary to the template (2) Damaged bases are recognized (3) DNA ligase seals the new strand to existing DNA (4) Part of a single strand is excised

Answer: C

In the Meselson-Stahl experiment, the researchers

Answer: E

The 3′ end of a DNA strand is defined as the place where

Answer: B

In dispersive replication of DNA,

Answer: C

Which of the following statements about mismatch repair of DNA is correct?

Answer: B

Which statement about DNA polymerase is false?

Answer: B

The leading and lagging strand in DNA replication differ in that only on the lagging strand

Answer: A

The appropriate adjective to describe DNA replication is

Answer: B

Wow! You are on top of this! It's not even due til Friday! Thanks a lot. It will be nice to get it done early!

Good job and thanks!!

Thanks a lot for going through this for all of us.

Ah I just spent an hour trying to do the quiz so I could put answers up and then I find this after I'm done! But thank you!! Ha

Anybody looked at the for investigation? I'm having a few problems trying to figure it out. I know the experiments from the book but I don't know about radioactive isotopes…unless they are…I'm lost

I can't figure out the for investigation either.

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