Question
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Match the types of immunity listed in column I with the examples listed in column II. Choose the correct answer that gives the correct combination of the alphabets of the two columns.
Column IColumn II
A. Natural active1. Immunity developed by heredity
B. Artificial passive2. From mother to fetus through the placenta
C. Artificial active3. Injection of antiserum to travelers
D. Natural passive4. Fighting infection naturally
5. Induced by Vaccination

(A). A-1, B-2, C-3, D-5
(B). A-4, B-3, C-5, D-2
(C). A-4, B-5, C-2, D-3
(D). A-5, B-4, C-3, D-1

Answer
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Hint Immunity to a disease is achieved through the presence of antibodies to that disease in a person’s system. Antibodies are proteins created by the body to kill or obliterate poisons or illness conveying living beings. Antibodies are disease-specific. For example, the measles antibody will protect a person who is exposed to measles disease but will have no effect if he or she is exposed to mumps.

Complete answer
Naturally acquired immunity happens when the individual is presented to a live microbe, builds up the illness, and gets safe because of the main resistant response. Typically acquired immunity is often induced by a vaccine, a substance that contains the antigen.
During pregnancy, naturally acquired immunity occurs, In which certain antibodies from the mother’s blood are passed into the bloodstream of the fetal blood with IgG. Artificially acquired immunity may be a short-term immunization by the injection of antibodies, like human gamma globulin, that aren't produced by the recipient's cells.

Additional information
Presentation to the sickness living being can happen through contamination with the specific illness (bringing about common invulnerability), or the presentation of a murdered or debilitated kind of the infection living being through immunization (antibody initiated insusceptibility). In any case, if a resistant individual comes into contact immediately with illness inside the future, their framework will remember it and quickly produce the antibodies expected to battle it.

So the correct answer is ‘A’.

Note: A newborn baby acquired passive immunity from its mother through the placenta. An individual additionally can get acquired immunity through antibody-containing blood items like immunoglobulin, which can tend when quick security from a chosen illness is required. This is the fundamental bit of leeway to passive immunity; security is prompt, though obtained invulnerability requires significant investment (typically half a month) to create.