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• 16. Which is INCORRECT for microtubules?(A) α- and β-tubulin are essential for polymerization of mic
• 17. Which of the following statement is INCORRECT for cell cycle?(A) S-phase requires active DNA pol
• 18. Which of the following has the enzyme activity?(A) ribonucleoprotein(B)rRNA(C) mRNA(D)SgRNA(E) r
• 19. Marry wants to clone a gene from a cDNA library. She designed a pair of primers and performed PC
• 20. Which statement about RNA is INCORRECT?(A) it can have enzyme activity(B) it can form secondary
• 21. Which post-translational modification is usually associated with protein degradation?(A) ubiquit
• 22. Endosomal pathways in cells are critical for protein trafficking. Which of statements is correct
• 23. John is studying a protein with Zinc-finger motif. What is the most likely function for this pro
• 24. CISPR is a novel technique that generates double strands break with the guidance of "guide
• 25. Which of the following CANNOT be determined by NGS (next generation sequencing)?(A) enzyme activ
• 26. Which of statements of Mitochondrial DNA is INCORRECT?(A) mtDNA is only Inherited from mother in
• 27. A mutation that changes a lysine codon to a stop codon is called a :(A) missense mutation(B) non
• 28. Which statement of mitosis is INCORRECT?(A) metaphase- chromosomes aligned at the metaphase plat
• 29. Which statement of SARS-Cov-2 is INCORRECT?(A)similar to HIV, it is an RNA virus with single str
• 30. SDS-polyacrylamide gel electrophoresis (PAGE) is a useful technique with the following descripti
• 31. Which statement of ribosome is INCORRECT?(A) prokaryotic and eukaryotic ribosomes are composed o
• 32. Splicing of mRNA must require the following EXCEPT for:(A) nucleophilic attack(B) adenosine(C) s
• Answer the question groups: Group1:33. Mark is a graduate student studying the function of a gene ca
• 34. In order to gain understanding of gene X, he wants to investigate whether this protein is intera
• 35. He then carried out the experiments, and found that X is interacting with a DNA sequence upstrea
• 36. Finally, he understood the biological function of gene X, but wanted to inspect the protein stru
• 37. James expressed a mRNA sequence from bacteria to generate a small peptide (RNA sequence-"UC
• 38. After sequencing, he found out a mutation in the RNA sequence that change a C into U as the foll
• 39. He then purified the peptide with the correct sequence from bacteria, but could not elicit the s
• 40. Finally, he figured out what went wrong, and successfully found a receptor on neuronal cells. Ba