Tag: blood groups and transfusion

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Questions Related to blood groups and transfusion

Multiple choice bio-chemistry immunity and blood groups blood group blood groups and compatibility advance blood groups and transfusion compatibility of blood groups

Which of the following cells play an important role in failure of transplanted organ?

  1. $CD _4$ cells and $CD _8$ cells

  2. Natural killer cells

  3. Plasma cells

  4. Mast cells
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Transplant rejection is primarily a cell-mediated response. CD4+ (helper) and CD8+ (cytotoxic) T-cells recognize foreign MHC antigens on the donor organ and initiate the destruction of the graft tissue.

Multiple choice bio-chemistry immunity and blood groups blood group blood groups and compatibility advance blood groups and transfusion compatibility of blood groups

Antibody common to blood group $O^-$ and individual with blood group $B^+$ is /are 

  1. Anti -B

  2. Anti A

  3. Both Anti B and Anti A

  4. Anti -RH
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

An individual with blood group O negative lacks A, B, and Rh antigens, meaning their plasma contains anti-A, anti-B, and potentially anti-Rh antibodies. A person with blood group B positive has B antigens on their red blood cells and therefore possesses anti-A antibodies in their plasma.

Multiple choice bio-chemistry immunity and blood groups blood group blood groups and compatibility advance blood groups and transfusion compatibility of blood groups

Persons with blood group A possess

  1. Antigen A and antibodies b

  2. Antigen A and antibodies a

  3. No antigen but antibodies a and b

  4. Antigens A and B but no antibodies.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Individuals with blood group A have antigen A on the surface of their red blood cells and anti-B antibodies (often denoted as b) in their plasma.

Multiple choice bio-chemistry immunity and blood groups blood group blood groups and compatibility advance blood groups and transfusion compatibility of blood groups

A man with blood group AB' marries a woman withO' blood group. In this situation

  1. The blood groups of their children will be the same as that of the mother

  2. The blood group of the children differs from both the parents

  3. While 50% of children will have father's blood group, the remaining will have mother's blood group

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When a man with blood group "AB" marries a woman with "0" blood group then blood group of children will be A' orB' which is differ from parental blood group. 

Multiple choice bio-chemistry immunity and blood groups blood group blood groups and compatibility advance blood groups and transfusion compatibility of blood groups

A child of blood group O cannot have parents of blood groups

  1. AB and AB/O

  2. A and B

  3. B and B

  4. O and O.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A child with blood group O must have the genotype OO, inheriting one O allele from each parent. Parents with AB blood group cannot pass on an O allele, so they cannot have an O child.

Multiple choice bio-chemistry immunity and blood groups blood group blood groups and compatibility advance blood groups and transfusion compatibility of blood groups

Blood transfusion is possible between groups

  1. Donor A and recipient O

  2. Donor B and recipient A

  3. Donor AB and recipient O

  4. Donor AB and recipient AB
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Blood transfusion is safe when the recipient does not have antibodies against the donor's antigens. AB individuals have both A and B antigens, so they can receive blood from AB donors (as they have no anti-A or anti-B antibodies).

Multiple choice bio-chemistry immunity and blood groups blood group blood groups and compatibility advance blood groups and transfusion compatibility of blood groups

What cannot be the blood groups of the parents of a baby having blood group A?

  1. O and O

  2. O and A

  3. A and O

  4. A and A.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A child with blood group A can have genotype AA or AO. If parents are O (OO) and O (OO), they can only produce O children. Therefore, O and O parents cannot have an A child.