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State PCS PYQPrelims 2025

BPSC – Combined Competitive Examination · Question 140

Which one of the following terms characterises the interaction between the herpes simplex virus and a human?

  1. Parasitism
  2. Symbiosis
  3. Endosymbiosis
  4. Endoparasitism
Show answer & explanation

Answer: (A) Parasitism

Explanation

HSV replicates in human cells and causes disease: a parasitic (+/−) relationship.

  • (A) Correct

    Correct: the virus benefits and the human host is harmed.

  • (B) Incorrect

    Wrong: symbiosis implies mutual benefit.

  • (C) Incorrect

    Wrong: endosymbiosis is mutually beneficial (e.g. mitochondria origin).

  • (D) Incorrect

    Wrong: a subtype; the standard term for this interaction is parasitism.