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• 14. Motor proteins provide for molecular motion in cells by interacting with what types of cellular
• 19. Which of the following is incorrect regarding the SARS-CoV-2 vaccines? (A) Moderna vaccines are
• 15. Amoebae move by crawling over a surface (cell crawling), which involves (A) growth of actin fila
• 16. Cilia and flagella bend because of (A) conformational changes in ATP that thrust microtubules la
• 17. The cell walls of bacteria, fungi, and plant cells and the extracellular matrix of animal cells
• 20. Which is not true of viruses? (A) Animal and plant cells are the only cells infected by these vi
• 18. The extracellular matrix is thought to participate in the regulation of animal cell behavior by
• 19. Ions can travel directly from the cytoplasm of one animal cell to the cytoplasm of an adjacent c
• 21. A complete virus particle is referred to as a (A) matrix. (B) envelope. (C) capsid. (D) cell. (E
• 22. Viral capsid protein subunits are called (A) viromers. (B) protomers. (C) auxomers. (D) primers.
• 20. Where would you expect to find tight junctions? (A) in the epithelium of an animal's intest
• 21. Cell membranes are asymmetrical. Which of the following statements are the most likely explanati
• 23. The part of an enveloped virus that consists of the nucleic acid and genome and the surrounding
• 22.Which of the following cell types have extensive area of endoplasmic reticulum? (A) Neurons that
• 24. An outer surface of viral envelopes is covered with glycoprotein spikes that function as (A) bin
• 23. Which of the following factor do not affect the resolution of a light microscope? (A) wavelength
• 24. Which of the following technique is used for preparing microsomes (A) sodium dodecyl sulfate-pol
• 25. Correlative light-electron microscopy is a technique? (A) with samples that labeled with gold pa
• 2. Which statement is correct? (A) Histone proteins are mainly positively charged. (B) The core hist
• 3. Which of the following protein is not required for DNA replication in E. coli? (A) DNA helicase (
• 4. Which of the following is a true statement regarding DNA polymerase? (A) It is a processive enzym
• 5. Which activity of DNA polymerase I is also called \"proofreading\" activity? (A) 5�
• 6. Which subunit of DNA polymerase III increases its processivity?(A) α subunit (B)γ complex(C)ε sub
• 7. During DNA Replication, a short segment of RNA must form before DNA synthesis can begin. This is
• 8. Amino acids are the building blocks of: (A) DNA and RNA (B) lipids (C) proteins(D) carbobydrates