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Select all that applyWhat types of cells are attacked by natural killer cells?Multiple select question.Cells that are infected by fungiTumor cellsCells that are infected by virusesGram-positive bacterial cellsGram-negative bacterial cells

Question

Select all that applyWhat types of cells are attacked by natural killer cells?Multiple select question.Cells that are infected by fungiTumor cellsCells that are infected by virusesGram-positive bacterial cellsGram-negative bacterial cells

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Solution

Natural killer cells, a type of white blood cell, are part of the innate immune system. They play a major role in the host-rejection of both tumors and virally infected cells. So, the correct answers are:

  • Tumor cells
  • Cells that are infected by viruses

Natural killer cells do not typically attack cells infected by fungi, or Gram-positive and Gram-negative bacterial cells. These types of infections are usually handled by other components of the immune system.

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