Inheritance of ABO Blood Groups

Q.

Can a child have a different blood type than their parents?

Q.

Do siblings have the same blood type?

Q.

How many phenotypes are possible in ABO blood group?

Q.

Write possible genotypes for blood groups A and B.

Q. If a child has blood group ‘A’ and his mother has blood group ‘A’ then, what are the possibilities of the blood group of his father?

1. A
2. O
3. B
4. All of these

Q. A person with unknown blood group under ABO system hs suffered much blood loss in an accident and needs immediate blood tranfusion. His one friend who has a valid certificate of his own blood type offers for blood donation without delay. What would have been the type of blood group of the donor friend ?

1. Type A
2. Type B
3. Type AB
4. Type O

Q.

ABO blood group is determined by three different alleles. How many phenotypes are possible?

Q.

A man of blood group A marries a woman of blood group AB. Which blood type in the offspring would indicate that the man is a heterozygote?

1. AB

2. A

3. O

4. B

Q.

Match the following related to combination of parents' blood groups and possible blood types of children.
$\begin{array}{cc}Column-I& Column-II\\ P.AandB& 1.A,B,AB\\ Q.ABandAB& 2.A,B\\ R.OandAB& 3.O\\ S.OandO& 4.A,B,AB,O\end{array}$

1. P - 4 , Q - 1, R - 3, S - 2

2. P - 4, Q - 1, R - 2, S - 3

3. P - 1, Q - 2, R - 3, S - 4

4. P - 4, Q - 3, R - 2, S - 1

Q.

The gene I that determines ABO blood groups has three alleles $I^A,I^{B}and{I}^O$ . The correct sequence of dominance of these alleles is

1. $I^A=I^B>I^O$

2. $I^A=I^B=I^O$

3. $I^A>I^B>I^O$

4. $I^A<I^B<I^O$

Q.

Match the following related to combination of parents' blood groups and possible blood types of children.
$\begin{array}{cc}Column-I& Column-II\\ P.AandB& 1.A,B,AB\\ Q.ABandAB& 2.A,B\\ R.OandAB& 3.O\\ S.OandO& 4.A,B,AB,O\end{array}$

1. P - 4 , Q - 1, R - 3, S - 2

2. P - 4, Q - 1, R - 2, S - 3

3. P - 1, Q - 2, R - 3, S - 4

4. P - 4, Q - 3, R - 2, S - 1

Q.

The number of phenotypes and genotypes of blood groups in human beings are

1. 4 phenotypes and 4 genotypes

2. 6 phenotypes and 6 genotypes

3. 6 phenotypes and 4 genotypes

4. 4 phenotypes and 6 genotypes

Q.

Is AB+ a rare blood group?

Q.

If a man having blood group AB marries woman having blood group B, then which of the blood groups is not possible in the progency?

1. A

2. B

3. AB

4. O

Q.

The blood group with only a homozygous genotype and the one with only a heterozygous genotype respectively are

1. O & AB

2. A & B

3. A & AB

4. B & AB

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

1. Blood group O
2. Blood group A
3. Blood group B
4. Blood group AB

Q.

The gene I that determines ABO blood groups has three alleles $I^A,I^{B}and{I}^O$ . The correct sequence of dominance of these alleles is

1. $I^A=I^B>I^O$

2. $I^A=I^B=I^O$

3. $I^A>I^B>I^O$

4. $I^A<I^B<I^O$