Tag: compatibility of blood groups

Questions Related to compatibility of blood groups

A boy has the blood group 0. What is true of the inheritance of this blood group in his case?

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

  1. His mother should be with AB blood group

  2. Both his parents could be heterozygous A group

  3. His father could be homozygous B group

  4. His mother could be homozygous A group

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Correct Option: B
Explanation:

If the boy has blood group o, both his parents could probably be heterozygous A group, $I^AI^O$, in both the parents.

So, the correct option is 'Both his parents could be heterozygous A group'.

Rh factor was discovered by

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

  1. Landsteiner and Weiner

  2. William Harvey

  3. Malpighi

  4. None of these

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Correct Option: A
Explanation:

Rh factor is an independent antigen present on the RBC irrespective of the presence of Antigen A or B. This factor is passed down from genus Rhesus macaque  (monkey) to humans and is regarded as the Rh factor it was discovered by Landsteiner and Weiner.

so, the correct answer is 'Landsteiner and Weiner'

Genotype of human blood group 'O' will be ______________.

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

  1. $I^A I^A$

  2. $I^A I^B$

  3. ii

  4. $I^A i$

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Correct Option: A

A child's blood group is `O'. The parents blood groups cannot be

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

  1. AB and 0

  2. B and 0

  3. A and B

  4. A and A

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Correct Option: A

A woman of blood group O' presented a baby of blood groupO' which she claimed as her child. She brought a suit against a man of 'AB' group as the father of the child. 

Which statement is correct as per your judgement

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

  1. The father and mother claimed are the true persons

  2. Father is true and mother is not the true person

  3. Both the parentage claims are false

  4. Mother is the true person and father claimed is not true

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Correct Option: D

Antigen - A andantibody - B are present in which blood group

bio-chemistry immunology blood group blood groups and compatibility advance blood groups and transfusion compatibility of blood groups

  1. B

  2. A

  3. AB

  4. 0

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Correct Option: B

In a medico-legal case of accidental interchange between two babies in a hospital, the baby of blood group A could not be rightly given to a people

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

  1. With both husband and wife of group 0

  2. Husband of group 0 and wife of group A

  3. Husband of group A and wife of group 0

  4. Both husband and wife of group A

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Correct Option: A

Which blood group called as universal donar?

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

  1. $AB$

  2. $A$

  3. $B$

  4. $O$

Show answer
Correct Option: D
Explanation:

Type O ( specifically O negative ) blood is called the universal donor type because it is compatible with any blood type. O blood group does not contain any antigen hence does not result in transfusion reactions.


So, the correct option is 'O'.

If the mother is $Rh^{-ve}$ and father is $Rh^{+ve}$, which of the following $Rh^{+ve}$ child is normally not affected?

zoology immunity and blood groups compatibility of blood groups blood group blood groups and compatibility advance

  1. First

  2. Second

  3. Male child

  4. Female child

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Correct Option: A
Explanation:

Rh incompatibility usually isn't a problem if it's the mother's first pregnancy because, unless there's some sort of abnormality, the fetus's blood does not normally enter the mother's circulatory system during the course of the pregnancy. However, during second child, the mother's and baby's blood can intermingle. If this happens, the mother's body recognizes the Rh protein as a foreign substance and might begin making antibodies (protein molecules in the immune system that recognize, and later work to destroy foreign substances) against the Rh proteins. Rh antibodies are harmless until the mother's second or later pregnancies. If she is ever carrying another Rh-positive child, her Rh antibodies will recognize the Rh proteins on the surface of the baby's blood cells as foreign, and pass into the baby's bloodstream and attack those cells. This can lead to swelling and rupture of the baby's RBCs. A baby's blood count can get dangerously low when this condition, known as a haemolytic or Rh disease of the newborn, happens.

Therefore, the correct answer is option B.

Which one of the following couple were suggested by doctors to not have more than one child?

zoology immunity and blood groups compatibility of blood groups blood group blood groups and compatibility advance

  1. Rh$^+$ male and Rh$^-$ female

  2. Rh$^-$ male and Rh$^+$ female

  3. Rh$^+$ male and Rh$^+$ female

  4. Rh$^-$ male and Rh$^-$ female

Show answer
Correct Option: A
Explanation:
Rh incompatibility occurs when a Rh- negative mother is impregnated by a Rh- positive father. The result can be Rh- positive baby. In such a case, the baby’s Rh antigens will be recognized as foreign invaders. The mother’s blood cells attack the baby’s as a protective mechanism and can cause erythroblastosis fetalis. If the mother is pregnant with her first baby, Rh incompatibility is not as much of a concern. However, when the Rh- positive child is born, the mother’s body creates antibodies against the Rh factor, which will attack the blood cells if she becomes pregnant with another Rh- positive baby.
Hence, the correct answer is option A.