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Molecular Biology Online Test


Correct Answer: 2 points | Wrong: -1 point
Grades: A* (100% score) | A (80%-99%) | B (60%-80%) | C (40%-60%) | D (0%-40%)
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Here is the complete list of test quizzes on Molecular Biology.

1. If the siRNA is a complete homolog of the target mRNA sequences what is the net result?

Question 1 of 50

2. The site where repressor binds the DNA is the ______________

Question 2 of 50

3. Histones have a high content of negatively charged amino acids.

Question 3 of 50

4. End labeled DNA sequencing is known as dideoxy method of sequencing.

Question 4 of 50

5. Pick the odd one out.

Question 5 of 50

6. Active cyclin dependent kinase is absent in ____________ phase.

Question 6 of 50

7. The linkage between the sugar and the base is a covalent linkage.

Question 7 of 50

8. Why is a probe labeled?

Question 8 of 50

9. What is the dinucleotide sequence of microsatellites?

Question 9 of 50

10. Mut S recruits how many component(s) to the mismatched site?

Question 10 of 50

11. Eukaryotic mRNAs recruit ribosomes using the Shine – Dalgarno sequence.

Question 11 of 50

12. Write down the name of scientist who has discovered the method of site directed mutagenesis?

Question 12 of 50

13. How many bases are there in per turn of the A form of DNA?

Question 13 of 50

14. Ubiquitinization always leads to the degradation of the protein.

Question 14 of 50

15. The digestion of mRNA during RT – PCR is carried out by the enzyme ____________

Question 15 of 50

16. The pre – RCs are auto-activated as soon as the cell enters the S – phase.

Question 16 of 50

17. What is the central protein of homologous recombination?

Question 17 of 50

18. The mRNA of which eukaryotic protein lacks introns?

Question 18 of 50

19. mRNA scanning is a cost-effective mechanism.

Question 19 of 50

20. The 3 dimension structure of an adaptor molecule of translation is revealed to be ___________

Question 20 of 50

21. Which one of the following rRNA undergoes least post-transcriptional processing?

Question 21 of 50

22. Transposable elements are often found once in a gene and have a unique sequence for its own.

Question 22 of 50

23. Levene investigated and found that the nucleic acid is composed of poly-nucleotides and each nucleotide is composed of one base, a sugar molecule and a phosphate. This was performed on the genome of________________

Question 23 of 50

24. If the lac operon of the genome of bacteria is always active it has a defect in which region of the operon?

Question 24 of 50

25. Which of the following RNAs can induce gene silencing?

Question 25 of 50

26. Which of the following pair is an example for using only one type of tRNA synthetase in bacteria?

Question 26 of 50

27. Transcription and translation occur in the same compartment in the cases of both prokaryotes and eukaryotes.

Question 27 of 50

28. What is the joint molecule?

Question 28 of 50

29. In which carbon do the deoxyribonucleotides lack an –OH molecule?

Question 29 of 50

30. The quality and yield of plasmid DNA preparation both are enhanced by end A mutation.

Question 30 of 50

31. If the insertions of three nucleotides occur in a consecutive manner it causes which of the following type of mutation?

Question 31 of 50

32. What is a patch product?

Question 32 of 50

33. Ti plasmid is the only known plasmid of plant.

Question 33 of 50

34. Length of Okazaki fragments in eukaryotes ranges between ____________ nucleotides.

Question 34 of 50

35. If Lk < Lk0 then DNA is ____________

Question 35 of 50

36. Which of the following component of splicosome recognizes the 3’ splice site?

Question 36 of 50

37. The formation of the acyl linkage is significant for protein synthesis even though it is a high energy bond.

Question 37 of 50

38. Polymerization of dNTP by DNA polymerase is in 3’ → 5’ direction.

Question 38 of 50

39. How is the strength of the interaction between primase and helicase which regulates the length of Okazaki fragments?

Question 39 of 50

40. The unpacked stretches of DNA are the extra chromosomal load found in the eukaryotic genome.

Question 40 of 50

41. Which of these factors contribute to a decrease in gene density?

Question 41 of 50

42. The highly conserved base at the branch point site is __________

Question 42 of 50

43. Packaging of DNA around nucleosome is known as ____________

Question 43 of 50

44. Which of the following is not a character of polyacrylamide gel?

Question 44 of 50

45. Which one of the following was first expressed as a fusion protein?

Question 45 of 50

46. How many loops are seen in the tRNA?

Question 46 of 50

47. LINE and SINE are examples of __________

Question 47 of 50

48. Which of the following splicosomal RNAs does not take part in the 5’ site splicing of the intron?

Question 48 of 50

49. Fredrick Griffith’s experiment involving Streptococcus pneumonia lead to the discovery of____________

Question 49 of 50

50. What are the two proteins which create site specific recombination?

Question 50 of 50


 

Topic wise Test Quizzes on Molecular Biology

Molecular Biology tests, quizzes, and exams are great ways to learn and test your Molecular Biology skills. Whether you’re a beginner or experienced, challenge and boost your confidence with our engaging online quizzes on Molecular Biology Basics, Genome Organization, DNA Topology, DNA Replication, Gene Expression, RNA Processing, Prokaryotic Gene Regulation, Mobile DNA, Plasmid, Recombination, Genetic Mutation and Repair. Start the Molecular Biology online test now!

Molecular Biology Basic Quiz

Genome Organization Quiz

DNA Topology Quiz

DNA Sequencing Quiz

DNA Replication Quiz

Genetic Transcription Quiz

Gene Expression Quiz

RNA Processing Quiz

Protein Synthesis Quiz

Prokaryotic Gene Regulation Quiz

Mobile DNA Quiz

Plasmid Quiz

Genetic Material Quiz

Genetic Mutation and Repair Quiz

Recombination Quiz

Molecular Biology Certification Test

Molecular Biology Certification Test is a free certification exam. However, you need to score at least a B grade in the “Qualifier Test” to be eligible to take part in this test. So, take the “Qualifier Test” before the Certification test.

Qualifier Test Certification Test

Total Questions: 50, Total Time: 1 hour, Correct Answer: 2 points, Wrong Answer: -1 point

Molecular Biology Internship Test

If you scored either Grade A* or Grade A in our Molecular Biology Internship Test, then you can apply for Internship at Sanfoundry in Molecular Biology.

Molecular Biology Internship Test

Total Questions: 50, Total Time: 1 hour, Correct Answer: 2 points, Wrong Answer: -1 point

Molecular Biology Job Test

It’s designed to test and improve your skills for a successful career, as well as to apply for jobs.

Molecular Biology Job Test

Total Questions: 50, Total Time: 1 hour, Correct Answer: 2 points, Wrong Answer: -1 point

  
Note: Before you get started on these series of online tests, you should practice our collection of 1000 MCQs on Molecular Biology here.

Sanfoundry Scoring & Grading System

Sanfoundry tests and quizzes are designed to provide a real-time online exam experience. Here’s what you need to know about them.

  • Scoring System: You get 2 points for each correct answer but lose 1 point for every wrong answer.
  • Grading System: Your grade depends on your final score and can be one of the following:

    • Grade A* – Genius (100%)
    • Grade A – Excellent (80% to 99%)
    • Grade B – Good (60% to 80%)
    • Grade C – Average (40% to 60%)
    • Grade D – Poor (0% to 40%)
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Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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