Molecular Biology

DNA Replication MCQs with Answers

Welcome to the DNA Replication MCQs with Answers. In this post, we have shared DNA Replication Online Test for different competitive exams. Find practice DNA Replication Practice Questions with answers in Biology Tests exams here. Each question offers a chance to enhance your knowledge regarding DNA Replication.

DNA, or deoxyribonucleic acid replication, is the absolutely critical process by which accurate genetic material is produced during cell division. This process is necessary for all living organisms for growth, development, and survival. It is during this time that people learn the steps of DNA replication and how cells ensure genetic continuity.

The first, the double helix unwound by the enzyme helicase, forms two single strands that may be used as templates in building new DNA. Another type of enzyme is called primase. It works through short strands of RNA to synthesize primers that complement the DNA templates. These primers, with something for DNA polymerase to add nucleotides to elongate the newly forming DNA strands,.

DNA Polymerase binds to the primer and elongates a new strand by incorporating nucleotides complementary to the template strand. It functions in a 5′ to 3′ direction. The leading strand promotes continuous DNA replication. When there is lagging strand, DNA replication is not continuous. Instead, smaller segments are generated. These are called Okazaki fragments. The activity of the ligase later joins them together.

Finally, the process of DNA replication is corrected or proofread. Furthermore, DNA polymerase, with its unmatched capacity to correct errors, can even correct mismatched nucleotides.

DNA Replication Online Quiz

By presenting 3 options to choose from, DNA Replication Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of DNA Replication Questions and Answers and click over the correct answer.

  • Test Name: DNA Replication MCQ Quiz Practice
  • Type: Quiz Test
  • Total Questions: 40
  • Total Marks: 40
  • Time: 40 minutes

Note: Answer of the questions will change randomly each time you start the test. Practice each quiz test at least 3 times if you want to secure High Marks. Once you are finished, click the View Results button. If any answer looks wrong to you in Quizzes. simply click on question and comment below that question. so that we can update the answer in the quiz section.

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DNA Replication MCQs

DNA Replication

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1 / 40

The Okazaki fragments on the lagging strand are joined together by the enzyme _____.

2 / 40

Telomerase is an enzyme that adds repetitive nucleotide sequences to the ends of chromosomes called _____.

3 / 40

The direction of DNA replication is _____.

4 / 40

Which enzyme is responsible for unwinding the DNA double helix during replication in prokaryotes?

5 / 40

Which of the following statements about DNA replication is true?

6 / 40

The enzyme responsible for joining Okazaki fragments during DNA replication is _____.

7 / 40

Which of the following statements about DNA replication is correct?

8 / 40

The process of DNA replication occurs during which phase of the cell cycle?

9 / 40

Which enzyme removes RNA primers and replaces them with DNA nucleotides during DNA replication?

10 / 40

In eukaryotic cells, DNA replication occurs _____.

11 / 40

How many strands of DNA serve as templates during DNA replication?

12 / 40

During DNA replication, adenine pairs with _____.

13 / 40

The short segments of DNA synthesized discontinuously during replication are called _____.

14 / 40

The DNA replication fork is formed by the unwinding of the double helix by the enzyme ____.

15 / 40

The process of DNA replication is _____.

16 / 40

The enzyme that catalyzes the addition of nucleotides during DNA replication is called _____.

17 / 40

Which of the following is a characteristic of the semi-conservative model of DNA replication?

18 / 40

Which of the following statements about DNA replication in eukaryotes is true?

19 / 40

The process by which DNA is replicated in a semi-conservative manner is called _____.

20 / 40

The process of removing and replacing damaged nucleotides during DNA replication is called _____.

21 / 40

The enzyme topoisomerase is involved in DNA replication by _____.

22 / 40

The Meselson-Stahl experiment provided evidence for which model of DNA replication?

23 / 40

The lagging strand in DNA replication is synthesized _____.

24 / 40

Which of the following is NOT a function of DNA ligase in DNA replication?

25 / 40

The enzyme that proofreads newly synthesized DNA strands and corrects errors is _____.

26 / 40

The leading strand in DNA replication is synthesized _____.

27 / 40

The replication fork is a region where _____.

28 / 40

In eukaryotes, which enzyme is responsible for adding telomeric repeats to the ends of chromosomes?

29 / 40

Which of the following is true regarding telomeres?

30 / 40

In prokaryotes, DNA replication begins at a specific sequence called the _____.

31 / 40

Which of the following is a role of DNA polymerase III in DNA replication?

32 / 40

What is the role of single-strand binding proteins (SSBs) in DNA replication?

33 / 40

Which of the following enzymes is NOT directly involved in DNA replication?

34 / 40

The primer used to initiate DNA synthesis is made of _____.

35 / 40

The process by which DNA polymerase replaces RNA primers with DNA nucleotides is called _____.

36 / 40

The enzyme that synthesizes the RNA primer during DNA replication is _____.

37 / 40

The enzyme responsible for separating the DNA strands during replication is called _____.

38 / 40

The enzyme responsible for unwinding the DNA double helix during replication is called _____.

39 / 40

Which of the following statements about DNA polymerase III is true?

40 / 40

Telomerase activity is particularly important in _____.

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