MCQ
Vaccines are made up of:
- AViruses
- BChemicals
- CDrugs
- ✓Weak microorganism
✓
Answer
Correct option: D.
Weak microorganism
A vaccine is a biological preparation containing weakened or dead microbes. It is introduced into a healthy person's body so that it can produce antibodies against the diseasecausing microbes. Vaccines can be injected or administered orally.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Why is zinc better than tin for electro$-$plating a piece of iron in order to prevent it from rusting?
→Joe slides a plank of wood over the floor. As the wood plank slides over the floor, its speed can be increased the most if.
Which one of the following is not correct about wildlife sanctuary?
Which of the following diagrams $X$ and $Y$ shows charging by conduction and charging by induction ? (Assume stands are insulating.)
→Bacilli are the bacteria that are:
A plastic comb is rubbed with dry hair whereas a glass rod is rubbed with a piece of silk cloth. Which of these will get negatively charged?
$A.$ Plastic comb.
$B.$ Glass rod.
$C.$ Dry hair.
$D.$ Silk cloth.
→$A.$ Plastic comb.
$B.$ Glass rod.
$C.$ Dry hair.
$D.$ Silk cloth.
The liquid will conduct electric current in a circuit when the vessel is filled with $...........$
→The migratory bird which comes from Siberia to India for a few months every year is:
Weak zones of plates are also known as:
Hypermetropia can be corrected by using: