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Why Do we Fall Ill — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceWhy Do we Fall Ill1 Mark
MCQ
Which of the following statements is correct about 'Vaccination?'
  • ✓
    Develops resistance against the attack of a disease.
  • B
    Can control every disease.
  • C
    Kills all the disease$-$causing organisms.
  • D
    Involves the use of antibodies.
✓

Answer

Correct option: A.
Develops resistance against the attack of a disease.
Vaccination is a technique to develop immunity in individuals without infection. In vaccination, a preparation of antigenic protein of pathogens or weakened or dead pathogens is injected into a person who is required to be immune. The pathogens, given in a vaccine are unable to cause disease but are sufficient to generate the primary immune response. So, the correct answer is 'Develops resistance against the attack of a disease.'

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