The presence of Which of the following factors in viruses makes protective vaccines a possibility ?
Correct answer: B. Protein coat
- A. Enzymes
- B. Protein coat
- C. Polysaccharide
- D. Lipids
Explanation
The viral protein coat contains antigens that stimulate protective antibody and cellular immune responses, forming the basis of many vaccines. Lipids and enzymes are not the main reason viral vaccines can induce specific protection.
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