Which of the following is not a property of DNA polymerase?

a. It adds dNTPs only in the 5'→3' direction.

b. It requires a primer to begin synthesis.

c. It opens the two strands of DNA at the replication fork.

d. Its exonuclease activity is involved in proofreading.

What is the function of primase?

a. Synthesis of the repetitive, short double-stranded DNA sequences required by DNA polymerase.

b. Synthesis of a short RNA strand that is complementary to single-stranded DNA.

c. Closing the gap at the 3′ end of DNA after excision repair.

d. Removing primers and synthesizing a short section of DNA to replace them.

How are Okazaki fragments synthesized?

a. By using the leading-strand template, and synthesizing 5'→3'

b. By using the leading-strand template, and synthesizing 3'→5'

c. By using the lagging-strand template, and synthesizing 5'→3'

d. By using the lagging-strand template, and synthesizing 3'→5'.

Telomerase synthesizes DNA in the _____ direction.

Researchers design experiments so that only one thing is different between the treatments that are being compared. In the Hershey–Chase experiment, what was this single difference?

Analyze the following statements about DNA synthesis. Select True or False for each statement.

T/F An RNA polymerase is essential for DNA synthesis.

T/F Okazaki fragments would be unnecessary if DNA polymerase could synthesize DNA in both the 3'→5' and 5'→3' directions.

T/F DNA ligase is used more frequently on the lagging strand than on the leading strand.

T/F Toposiomerase is required to separate the two strands of DNA at the replication fork.

How does telomerase prevent linear chromosomes from shortening during replication?