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DNA Replication Quiz — Grade 11–12 | 20 Multiple Choice Questions with Answers

Test your understanding of DNA replication with this 20-question multiple choice quiz for Grade 11–12 biology students. This quiz covers enzymes, base pairing, leading and lagging strands, and replication processes. Perfect for high school…

20 questions

10 min

Intermediate

Grade 12

DNA Replication Quiz — Grade 11–12 | 20 Multiple Choice Questions with Answers

Test your understanding of DNA replication with this 20-question multiple choice quiz for Grade 11–12 biology students. This quiz covers enzymes, base pairing, leading and lagging strands, and…

20

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10m

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Test your understanding of DNA replication with this 20-question multiple choice quiz for Grade 11–12 biology students. This quiz covers enzymes, base pairing, leading and lagging strands, and replication processes. Perfect for high school biology review and exam preparation.

DNA Replication Quiz — Grade 11–12 | 20 Multiple Choice Questions with Answers

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Questions in this quiz

DNA replication occurs in which part of the cell?
- A. Cytoplasm
- B. Ribosome
- C. Nucleus
- D. Cell membrane
DNA replication occurs during which phase of the cell cycle?
- A. G1 Phase
- B. S Phase
- C. G2 Phase
- D. M Phase
Which enzyme unwinds the DNA double helix?
- A. DNA polymerase
- B. Helicase
- C. Ligase
- D. Primase
Which enzyme adds new nucleotides to the growing DNA strand?
- A. Helicase
- B. Ligase
- C. DNA polymerase
- D. RNA polymerase
DNA replication is described as:
- A. Conservative
- B. Semi-conservative
- C. Dispersive
- D. Random
Which bases pair together in DNA?
- A. A–G, C–T
- B. A–T, C–G
- C. A–C, T–G
- D. A–A, T–T
The short DNA fragments on the lagging strand are called:
- A. Replication forks
- B. Okazaki fragments
- C. Primers
- D. Codons
Which enzyme joins Okazaki fragments?
- A. Helicase
- B. DNA polymerase
- C. Ligase
- D. Primase
The strand that is synthesized continuously is called:
- A. Lagging strand
- B. Leading strand
- C. Template strand
- D. Coding strand
DNA replication begins at the:
- A. Replication fork
- B. Origin of replication
- C. Centromere
- D. Codon
Which direction does DNA polymerase build new DNA?
- A. 3' to 5'
- B. 5' to 3'
- C. Both directions
- D. Random direction
RNA primers are added by which enzyme?
- A. Ligase
- B. Primase
- C. Helicase
- D. Polymerase
DNA replication produces:
- A. One DNA molecule
- B. Two identical DNA molecules
- C. Three DNA molecules
- D. Four DNA molecules
Which strand is synthesized in fragments?
- A. Leading strand
- B. Lagging strand
- C. Template strand
- D. Coding strand
The shape of DNA is called:
- A. Double strand
- B. Double helix
- C. Double chain
- D. Spiral chain
Which base pairs with adenine?
- A. Cytosine
- B. Guanine
- C. Thymine
- D. Uracil
Which base pairs with cytosine?
- A. Adenine
- B. Guanine
- C. Thymine
- D. Uracil
What holds DNA strands together?
- A. Ionic bonds
- B. Hydrogen bonds
- C. Peptide bonds
- D. Metallic bonds
DNA replication ensures:
- A. Energy production
- B. Genetic information is copied
- C. Proteins are made
- D. Cells divide immediately
Replication forks form when:
- A. DNA strands separate
- B. DNA strands combine
- C. Proteins form
- D. RNA forms

Show answer key

Answer key — DNA Replication Quiz — Grade 11–12 | 20 Multiple Choice Questions with Answers

1. C
2. B
3. B
4. C
5. B
6. B
7. B
8. C
9. B
10. B
11. B
12. B
13. B
14. B
15. B
16. C
17. B
18. B
19. B
20. A

DNA Replication Quiz — Grade 11–12 | 20 Multiple Choice Questions with Answers — worksheetgalaxy.com