Question 1

What is the process called when DNA makes an identical copy of itself?

Accepted Answer

DNA replication

Answer

DNA mutation

Answer

DNA translation

Answer

DNA transcription

Question 2

Which enzyme is responsible for copying DNA during replication?

Accepted Answer

DNA polymerase

Answer

RNA polymerase

Answer

DNA helicase

Answer

DNA ligase

Question 3

What is the purpose of DNA replication?

Accepted Answer

To create new DNA molecules with unique genetic information.

Answer

To repair damaged DNA.

Answer

To produce proteins for the cell.

Answer

To ensure the accurate transmission of genetic information to daughter cells.

Question 4

Which enzyme is responsible for separating the DNA strands during replication?

Accepted Answer

DNA helicase

Answer

RNA polymerase

Answer

DNA ligase

Answer

DNA polymerase

Question 5

What is the first step in DNA replication?

Accepted Answer

Separation of the DNA strands

Answer

Binding of DNA polymerase

Answer

Unwinding of the DNA double helix

Answer

Synthesis of new DNA strands

Question 6

What is the role of DNA ligase in DNA replication?

Accepted Answer

To join Okazaki fragments on the lagging strand

Answer

To separate the DNA strands

Answer

To add new nucleotides to the growing strand

Answer

To unwind the DNA double helix

Question 7

What is the role of DNA polymerase in DNA replication?

Accepted Answer

To add new nucleotides to the growing DNA strand

Answer

To separate the DNA strands

Answer

To unwind the DNA double helix

Answer

To repair damaged DNA

Question 8

Which direction is DNA synthesized on the lagging strand during DNA replication?

Accepted Answer

5' to 3'

Answer

Randomly

Answer

3' to 5'

Answer

Both 5' to 3' and 3' to 5'

Question 9

What is the lagging strand in DNA replication?

Accepted Answer

The strand that is synthesized discontinuously in the opposite direction of the replication fork

Answer

The strand that contains the majority of DNA damage

Answer

The strand that is synthesized continuously in the same direction as the replication fork

Answer

The strand that is responsible for the initial unzipping of DNA

Question 10

What are Okazaki fragments?

Accepted Answer

Short DNA fragments synthesized on the lagging strand during DNA replication

Answer

Incomplete DNA fragments found in the nucleus of cells

Answer

Long DNA fragments synthesized on the leading strand during DNA replication

Answer

Different types of proteins involved in DNA repair

Answer

Large molecules that make up the structure of DNA

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