MCQ
Vaccine is a:
- APreparation of antibiotics.
- BPreparation of life saving drugs.
- CPreparation of inactivated or killed bacteria.
- DPreparation of lysins.
Explanation:
A vaccine is a biological preparation which improves immunity to a particular disease. A vaccine contains an agent that resembles a disease-causing microorganism and it is usually made from weakened (attenuated) or killed forms of the microbe, its toxins or one of its surface proteins.
The agent stimulates the body's immune system to recognize the agent as foreign, destroy it and remember it so that the immune system can more easily recognize and destroy any of these microorganisms that it later encounters.
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$II.$ The bacterial/plant, animal cell is broken down by enzymes to release $DNA$, along with $RNA$, proteins, polysaccharides and lipids
Choose the correct option for above statements