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• 14. Which enzyme is responsible for excising damaged or incorrect nucleotides during base excision r
• 15. Nectosis is often associated with: (A) Cellular shrinkage (B) Inflammatory response (C) Energy-d
• 16. What are the advantages of monoclonal antibodies over antisera? (A) They can be produced with hi
• 17.The Agel restriction enzyme recognizes the sequence ACCGGT and cuts each strand between the first
• 18.Is sequencing, does each labeled DNA molecule have a fluorescently labeled dideoxyribonucleotide
• 19.The DNA-binding proteins that recognize and accurately initiate transcription at specific eukaryo
• 20. Functional DNA is not found in: (A) bacterial nucleoids(B)chloroplasts(C)lysosomes(D) mitochondr
• 21.The cell metabolism is tightly connected to the regulation of gene expression. The lac operon (la
• 22.The 2019 Nobel Prize in Physiology or Medicine was awarded to three scientists for discovering hy
• 23. Translation defines the cellular proteome； which statement is correct? (A) Translational control
• 24.Consider the canonical nuclear localization sequence (cNLS) mediated protein transport mechanism；
• 25. Vesicular transport describes vesicles bud off from one compartment and fuse with another. Most
• 26. Which of the following statement(s) is cotrect regarding to protein endocytosis or exocytosis? (
• 27. Which of the following statements regarding stem cells (SCs) is correct?(1) A stem cell can divi
• 28. Which of the following statement regarding neurotransmitter is correct? (1) A neurotransmitter c
• 29. Which of the following statement about membrane potential and action potential propagation is NO
• 30. Which strategy is the current immune checkpoint blockade for cancer immunotherapy? (A) Anti-CTLA
• 31. Re-replication during S phase results in DNA damage and genomic instability. Which one does NOT
• 32. Which one is responsible for DNA damage checkpoint? (A) APC\/C E3 complex (B) Cul3-KLHL20 E3 li
• 33. Which repair mechanism is primarily responsible for fixing thymine dimers caused by UV radiation
• 34. Which organelle plays a central role in initiating the intrinsic pathway of apoptosis? (A) Mitoc
• 35. To study the function of the essential cyclin genes in yeast, researchers constructed a shuttlc
• 36. In intestinal epithelial cells, the different plasma membrane domains are separated from each ot
• 37.Whis of the following lipids do you expect to be a canonical scramblase substrate in the plasn (A
• 38.\"Housekeeping genes\" in bacteria are commonly expressed constitutively, but not all