Multiple Allelism MCQ Advance Level

Dear Readers,

Zoology is considered to be one of the scoring section. If prepared thoroughly, Zoology can help students to secure a meritorious position in the exam. These questions are very important in achieving your success in Exams after 12th.

Q1. MN factor are due to

  •  Two co-dominant genes M and N
  •  Recessive genes m and n
  •  Mn and Nm
  •  None of the above

Two co-dominant genes M and N

Q2. Detection of blood group is done by agglutinisation test using antiserum. According to this

  •  If the blood shows coagulation with antiserum B the blood group is B
  •  If the blood shows coagulation with both antiserum A and B, the blood group is O
  •  If the blood shows coagulation with antiserum A, the blood group is AB
  •  None of the above

If the blood shows coagulation with antiserum B the blood group is B

Q3. In term of ABO system of blood grouping a transfusion reaction is likely to follow administration of

  •  Group A blood to a group A person
  •  Group B blood to a group AB person
  •  Group O blood to a group AB person
  •  Group A blood to a group O person

Group A blood to a group O person

Q4. Between persons of which two blood groups is the transfusion is not possible

  •  O and AB (AB recipient)
  •  O and A (O donor)
  •  O and B (O donor)
  •  O and AB (AB donor)

O and AB (AB donor)

Q5. If a human mother has 'O' blood group, the foetus would die if the blood of foetus is

  •  A
  •  B
  •  AB
  •  Would remain unaffected by blood group whether it is A, B or AB

Would remain unaffected by blood group whether it is A, B or AB

Q6. The second pregnancy of a woman terminates due to anaemia of the foetus. She has never had a blood transfusion. On the basis of this, which of the following is correct

  •  Child from the first pregnancy is Rh+ve
  •  The husband of the woman is Rh+ve
  •  The woman is Rh-ve
  •  All the above

All the above

Q7. A man with blood group 'AB' marries a woman with 'O' blood group. In this situation

  •  The blood group of their children will be the same as that of the mother
  •  The blood group of the children differs from both the parents
  •  While 50% of children will have father's blood group, the remaining will have mother's blood group
  •  None of the above

The blood group of the children differs from both the parents

Q8. When whole blood is stored with an anticoagulant at 4°C, the K+ ions move out from the RBC into the plasma. The most likely reasons for this is that

  •  RBC haemolyses and hence leakage of K+ ions
  •  K+ ions become more mobile at 4°C
  •  Active transport ceases resulting in ionic equilibrium
  •  The anticoagulant attracts the K+ ions into the plasma

K+ ions become more mobile at 4°C

Q9. 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

  •  With both husband and wife if group O
  •  Husband of group O and wife of group A
  •  Husband of group A and wife of group O
  •  Both husband and wife of group A

With both husband and wife if group O

Q10. If one parent belongs to 'A' blood group and the other of 'O' blood group, their children possibly represent

  •  A and B groups only
  •  AB only
  •  A and O groups only
  •  All four groups

A and O groups only

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Multiple Allelism MCQ Advance Level
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