5. Which enzyme synthesizes a new strand of DNA from an old strand of DNA during

Question

5.

Which enzyme synthesizes a new strand of DNA from an old strand of DNA during DNA replication?

DNA ligase

RNA polymerase

helicase

DNA polymerase

6.

Telomeres _____.

accelerate the shortening of chromosomes.

are located at the center of chromosomes.

are present in both prokaryotes and eukaryotes.

are located on the end of chromosomes.

7.

DNA is most compacted during which phase of the cell cycle?

metaphase of mitosis

G1

interphase

S phase

8.

One reason why DNA replication has a low error rate is because _____.  

DNA polymerase can proofread and edit mistakes.

Mistakes never occur.

Thymine dimer prevent mistakes.

Cells with DNA mutations always die.

DNA ligase

RNA polymerase

helicase

DNA polymerase

6.

Telomeres _____.

accelerate the shortening of chromosomes.

are located at the center of chromosomes.

are present in both prokaryotes and eukaryotes.

are located on the end of chromosomes.

7.

DNA is most compacted during which phase of the cell cycle?

metaphase of mitosis

G1

interphase

S phase

8.

One reason why DNA replication has a low error rate is because _____.  

DNA polymerase can proofread and edit mistakes.

Mistakes never occur.

Thymine dimer prevent mistakes.

Cells with DNA mutations always die.

Explanation / Answer

Answers -

5. DNA polymerase.

6. Are located on the end of chromosomes.

7. S phase.

8. DNA polymerase can proofread and edit mistakes.

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