PATHOLOGY

PATHOLOGY MCQ

GENETICS AND DISEASE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A woman heterozygous for A blood marries a man heterozygous for B blood. What is the probability that they will produce offspring with AB blood?
A
0%
B
25%
C
50%
D
75%
Explanation: 

Detailed explanation-1: -It means that 50% of the children will have the blood type AB (genotype AB ) and 50% of the children will have the blood type B (genotype BO). The ratio is different for a man with a blood type B and a genotype of BO. The genotypic ratio will be 1 AB: 1 BO: 1 AO: 1 OO.

Detailed explanation-2: -A cross between a heterozygous individual with blood group A and a woman with blood group AB produces offspring with blood groups A, AB and B.

Detailed explanation-3: -Do the same for the results for BB and B0. The chance for A blood group is 37.5% + 12.5% = 50% . The chance for B blood group is 12.5% . The chance for AB blood group is 37.5% .

Detailed explanation-4: -Blood type has no effect on your ability to have and maintain a happy, healthy marriage. There are some concerns about blood type compatibility if you’re planning to have biological children with your partner, but there are options during pregnancy that can help counteract these risks.

Detailed explanation-5: -The given information is not enough to determine the traits-blood group A or O is dominant. In ABO blood grouping blood type A is always dominant whereas, the blood type O is always recessive. Here the father’s blood group is A hence, it can either be homozygous (AA) or heterozygous (AO). More items

There is 1 question to complete.