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Q.

Which of the following is correct?

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a

Rheumatoid arthritis is a type of cancer of epithelial tissues.

b

The principle of passive immunisation is based on memory.

c

Memory – B and memory – T cells produce antibodies.

d

Proto-oncogenes are present in normal cells of our body.

answer is D.

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Detailed Solution

Proto-oncogenes are present in normal cells of our body.

Active immunisation or vaccination is based on memory.

Rheumatoid arthritis is an autoimmune disorder.

B cells produce antibodies.

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