Match the following and choose the correct combination related to blood groups of Man. List I List II i Sensitized Mother a Number of genotypes for multiple alleles ii HDNB b With memory cells for D - Antigen iii Isoagglutinogen c The antibody of other individual, but same species iv Isoagglutinin d The antigen of other individual, but same species v n ( n + 1 ) 2 e IgG antibody

i - b , ii - e , iii - d , iv - c , v - a

i - d , i - c , ii - e , iv - b , v - a

i - c , ii - d , ii - e , iv - b , v - a

i - d , ii - e , ii - a , iv - b , v - c

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Which antibody can cross the placenta to reach the embryo? (IgA, IgM, IgG, IgE)

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Important Questions on Human Health and Disease

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Biology>Biology in Human Welfare>Human Health and Disease>Immunity

Persons with 'AB' blood group are called as "Universal recipients". This is due to:

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Biology>Biology in Human Welfare>Human Health and Disease>Immunity

Antigen-antibody reactions:

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Biology>Biology in Human Welfare>Human Health and Disease>Immunity

Erythroblastosis foetalis can be avoided by:

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Following are the types of immunoglobulin and their functions. Which one of the following is INCORRECTLY paired?

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Biology>Biology in Human Welfare>Human Health and Disease>Immunity

A person with blood group "A" can (i) donate blood to, and (ii) receive blood from:

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Rh

- antibodies are following type

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Select the correct

Rh

-blood groups of the parents, whose child is affected with erythroblastosis foetalis.

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What are monoclonal antibodies? Mention its use.

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Biology>Biology in Human Welfare>Human Health and Disease>Immunity

A sample of blood shows clumping with antiserum

A

but not with antiserum

B

. The blood group would be

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Biology>Biology in Human Welfare>Human Health and Disease>Immunity

If the RBCs of a blood sample are agglutinated when mixed with anti B antibodies, then the blood group of the blood sample is

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Biology>Biology in Human Welfare>Human Health and Disease>Immunity

Match the following and choose the correct combination related to blood groups of Man.

List I		List II
$(i)$	Sensitized Mother	$(a)$	Number of genotypes for multiple alleles
$(ii)$	$HDNB$	$(b)$	With memory cells for $D -$ Antigen
$(iii)$	Isoagglutinogen	$(c)$	The antibody of other individual, but same species
$(iv)$	Isoagglutinin	$(d)$	The antigen of other individual, but same species
$(v)$	$\frac{n (n + 1)}{2}$	$(e)$	$IgG$ antibody

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Biology>Biology in Human Welfare>Human Health and Disease>Immunity

Person with blood group AB is considered as universal recipient because he has:

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Biology>Biology in Human Welfare>Human Health and Disease>Immunity

A certain road accident patient with unknown blood group needs immediate blood transfusion. His own doctor friend at once offers his blood. What was the blood group of the donor?

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Antibodies found in colostrum are mainly of this type

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Give the biological reasons for the following statement:
Medical discoveries such as antibiotics and vaccinations have indirectly contributed to the sharp rise in human population.

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Biology>Biology in Human Welfare>Human Health and Disease>Immunity

Which antibody characterizes the allergic reaction?

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Biology>Biology in Human Welfare>Human Health and Disease>Immunity

Explain in brief the mechanism of antibody-antigen complex formation with a neat, labelled diagram.

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Biology>Biology in Human Welfare>Human Health and Disease>Immunity

Which one of the following statements is incorrect with respect to human antibodies?

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Biology>Biology in Human Welfare>Human Health and Disease>Immunity

Which of the following conditions cause erythroblastosis foetalis?