Bacteria and archaea evolved CRISPR systems to protect them from what?
A) Antibiotics
B) Bacteriophage (viruses)
C) Protozoa
D) The immune system
E) UV light
Answer: B) Bacteriophage (viruses)
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Microbiology
- Select the correct statement about active and passive immunity.
- Select the correct definition about tissue grafts.
- Natural killer (NK) cells ________.
- Clonal selection of B cells ________.
- Fever ________.
- What is the role of interferon in defense against disease?
- Which of the following is not a function of the inflammatory response?
- Which of the following does not respond to cell-mediated immunity?
- Which statement is true about T cells?
- Which of the following is not a first line of defense?
- Innate immune system defenses include ________.
- B cells respond to the initial antigen challenge by ________.
- Which of the following is not a method by which antibodies work?
- Which of the following is associated with passive immunity?
- Which of the following is not a type of T cell?
- The antibody molecule is held together by ________ bonds.
- The primary immune response ________.
- Which of the following statements about Complement is false?
- Which of the following is a part of the second line of defense against microorganisms?
- Select the correct statement about the function of antibodies.
- Cytotoxic T (TC) cells are like natural killer (NK) cells because they both
- Cancer cells and virus-infected body cells can be killed before activation of adaptive immunity by ________.
- Antibody functions include all of the following except ________.
- Phagocyte mobilization involves ________.
- Which of the following is not an autoimmune disease?
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