Which of the following are required for DNA replication? 1. DNA polymerases 2. D

Question

Which of the following are required for DNA replication? 1. DNA polymerases 2. DNA ligases 3. a template 4. nitrogenous bases Select one: O a. Choices 1, 2, and 3 are correct O b. Choices 1 and 4 are correct. O c. All choices are correct. O d. Choices 1 and 3 are correct. O e. Choices 2 and 4 are correct At the end of replication, each of the daughter DNA molecules has one old strand derived from the parent DNA strand, and one newly synthesized strand. This type of replication know as Select one: O a. conservative. O b. largely conservative. O c. nonconservative. O d. semiconservative. O e. liberal.

Explanation / Answer

1)c. All choices are correct.

DNA polymerase synthesises DNA molecules from deoxyribonucleotides.

DNA ligases facilitate joining of DNA strands.

A template is used to attach complimentary bases during replication.

Nitrogenous bases are substrates.

2) d. semiconservative.

One strand of parent double helix is conserved in each new DNA molecule.

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