True or False

Oral Polio Vaccine (OPV) is a live but attenuated virus which colonises the gastrointestinal tract.

False

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True

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Solution

The correct option is B True
The correct answer is: A. True

Attenuated vaccine is a vaccine which is developed after reducing the virulence of pathogens.

The live-attenuated oral polio virus vaccine is taken by mouth which colonises the gut and induces immunity.

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State whether true or false

(i) Gastrointestinal tract, kidney and heart also produce hormones.

(ii) Pars distalis produces six trophic hormones.

(iii) B-lymphocytes provide cell-mediated immunity.

(iv) Insulin resistance results in a disease called diabetes mellitus.

True or False
Oral Polio Vaccine (OPV) is a live but attenuated virus which colonises the gastrointestinal tract.

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