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Molecular Biology MCQs with Answers

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

Molecular Biology Online Quiz

By presenting 3 options to choose from, Molecular Biology 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 Molecular Biology Questions and Answers and click over the correct answer.

  • Test Name: Molecular Biology 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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Molecular Biology MCQs

Molecular Biology

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1 / 40

What is the primary function of DNA ligase in DNA replication?

2 / 40

What is the function of ribosomal RNA (rRNA) in protein synthesis?

3 / 40

What is the function of the lac operon in bacterial gene regulation?

4 / 40

What is the function of DNA ligase in recombinant DNA technology?

5 / 40

What is the function of reverse transcriptase in retroviruses?

6 / 40

What is the role of the promoter region in gene transcription?

7 / 40

What is the role of the Shine-Dalgarno sequence in bacterial gene expression?

8 / 40

What type of bond holds complementary DNA base pairs together?

9 / 40

What is the function of chaperone proteins in molecular biology?

10 / 40

What is the function of topoisomerase in DNA replication?

11 / 40

What is the function of the TATA box in eukaryotic gene transcription?

12 / 40

What is the function of RNA polymerase in transcription?

13 / 40

What is the process by which mRNA is decoded to produce a protein?

14 / 40

What is the function of telomerase in eukaryotic cells?

15 / 40

What is the function of the Shine-Dalgarno sequence in bacterial mRNA?

16 / 40

What is the role of sigma factor in bacterial transcription?

17 / 40

What is the function of DNA polymerase in DNA replication?

18 / 40

Which structure is formed when two strands of DNA are antiparallel and complementary?

19 / 40

Which enzyme is responsible for synthesizing the RNA primer during DNA replication?

20 / 40

Which enzyme is responsible for unwinding DNA during replication?

21 / 40

What is the central dogma of molecular biology?

22 / 40

What is the primary function of histones in eukaryotic chromosomes?

23 / 40

Which enzyme is responsible for adding nucleotides to the growing RNA chain during transcription?

24 / 40

Which molecule is responsible for carrying out the process of splicing during mRNA maturation?

25 / 40

What is the primary function of the CRISPR-Cas9 system in genome editing?

26 / 40

What is the role of sigma factor in bacterial transcription?

27 / 40

What is the function of transfer RNA (tRNA) molecules in translation?

28 / 40

Which enzyme catalyzes the formation of phosphodiester bonds during DNA replication?

29 / 40

What is the function of the 5' cap and poly-A tail in eukaryotic mRNA?

30 / 40

Which technique is used to amplify a specific segment of DNA?

31 / 40

Which RNA molecule carries amino acids to the ribosome during translation?

32 / 40

Which molecule serves as a template for the synthesis of complementary RNA during transcription?

33 / 40

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

34 / 40

Which enzyme catalyzes the formation of phosphodiester bonds during DNA replication?

35 / 40

Which enzyme is responsible for cutting DNA at specific sequences during recombinant DNA technology?

36 / 40

What is the function of a restriction endonuclease in recombinant DNA technology?

37 / 40

What is the role of spliceosomes in eukaryotic gene expression?

38 / 40

What is the genetic code's redundancy referred to as?

39 / 40

Which process involves the copying of DNA into RNA?

40 / 40

What is the role of RNA interference (RNAi) in gene regulation?

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