7. The single strand of DNA shown below can replicate and produce which of the f

Question

7. The single strand of DNA shown below can replicate and produce which of the following strands? DNA: A-T-C-C-G.G-A-T-T-A-C-G A. T-A-C-C-C-C-T-A-A-T-G-C B. T-A-G-G-C-C-T-A-A-T-G-C C. U-A-G-G-C-C-U-A-A-U-G-C D. G-A-T-T-C-C-G-C-C-G-T-C 8. Semi conservative is a term used to describe, A. RNA transcription B. RNA translation C. DNA translation D. RNA replication E. DNA replication 9. DNA can be mutated by exposure to A. UV radiation B. chemicals C. viruses D. all of the above 10. The enzyme responsible for arranging the free nucleotides and aligning them with the template strand is, A. Helicase B. Topoisomerase C. DNA polymerase D. Gyrase

Explanation / Answer

Que 7.

Ans:

The single strand of DNA shown below can replicate and produce following strands: B. T-A-G-G-C-C-T-A-A-T-G-C.

Explanation:

- DNA replication is semiconservative.

- DNA replication require enzymes such as DNA polymerase, DNA helicase, DNA primase, DNA ligase and topoisomerase.

- The single strand of DNA can replicate and produce a new, complementary strand.

- Adenine base pairs with thymine and guanine base pairs with cytosine during formation of complementary strand.

- Hence, correct option is: B.

Que 8.

Ans:

Semi conservative is a term used to describe: E. DNA replication.

Explanation:

- DNA replication is semiconservative.

- Each strand in the double helix acts as a template for synthesis of a new, complementary strand.

- Hence, correct option is: E.

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