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• 6. Which organelle is responsible for protein degradation? (A) Mitochondria (B) Ribosome (C) Lysosom
• 7. Na+, K+, Ca2+, and Cl- permeation through their respective ion channels represents an example of
• 8.Which of the following can be used as a temperature-sensitive mutant to study the endomem (A) Aden
• 9.The signal sequence that determines whether a protein will be synthesized on a free ribosome or ri
• 10. of the following is not a common intracellular second mes (A) adenosine triphosphate (ATP) (B) 1
• 11. Which source of stem cells has the greatest potential for producing different kinds of new stem
• 12. Which one is a major regulator in G1 phase? (A) CDKI-cyclin B (B) CDK2-cyclin A (C) CDK2-cyclin
• 13. Which cell is responsible for innate immune response? (A) T cell (B) B cell (C)NK cell (D) Plate
• 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