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Adaptive Immunity

Which one of ...

Question

Which one of the following statements is correct with respect to immunity?

A

Preformed antibodies need to be injected to treat the bite by a viper snake

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B

The antibodies against small pox pathogen are produced by T-lymphocytes

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C

Antibodies are protein molecules, each of which has four light chains

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D

Rejection of a kidney graft is the function of B-lymphocytes

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Solution

The correct option is A Preformed antibodies need to be injected to treat the bite by a viper snake
A. Anti-snake venom is made by collecting venom from the snake and injecting small amounts of it usually into a horse. The antibodies that form in the horse blood are then collected and used to treat a snake bite case by injecting directly to the affected person.
B. Antibodies against smallpox are produced by B-lymphocytes.
C. Antibodies contain 2 light chains and 2 heavy chains.
D. Rejection of a kidney graft is a function of T-lymphocytes.
So, the correct answer is, 'Preformed antibodies need to be injected to treat the bite by a viper snake'.

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Similar questions

Q. Assertion :B-Lymphocytes produce an army of proteins against invading pathogen that are called antibodies Reason: The T-cells themselves do not secrete these antibodies but help B cell to produce them

Q. Fill in the blanks by selecting suitable terms given below : [4 MARKS]
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Q. Which of the following are the reason(s) with respect to rheumatoid arthritis are correct?

(i) Lymphocytes become more active
(ii) Body attacks self cells
(iii) More antibodies are produced in the body
(iv) The ability to differentiate pathogens or foreign molecules from self cells is lost

Q. Which ones of the following statements are wrong?
(a) Leucocytes disintegrate in spleen and liver
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Q. Which one of the following statements are wrong?
(a) Leucocytes disintegrate in spleen and liver.
(b) RBC, WBC and blood platelets are produced by the bone marrow.
(c) Neutrophils bring about destruction and detoxification of toxins of protein origin.
(d) Important function of lymphocytes is to produce antibodies.

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