Tumour cells can evade the immune system by
A) changing their antigens over time.
B) having antigens that are weak immunogens.
C) secreting immunosuppressive substances.
D) replicating very quickly.
E) all of the above.
Correct Answer:
Verified
Q16: Human leucocyte antigen (HLA)proteins are
A)found only on
Q17: The main phagocytic cells in the body
Q18: Which of the following is a part
Q19: The substance that changes the body temperature
Q20: An important innate defence mechanism in the
Q22: Which of the following is NOT an
Q23: An autoimmune disease represents a loss of
A)T
Q24: Which class of antibody is indicative of
Q25: A person who has recovered from an
Q26: Toxoids are
A)antibodies against toxins.
B)lipopolysaccharides of Gram-negative bacteria.
C)proteins
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