NEET2026BiologyChapterActual
During a blood typing test, a man's blood sample shows agglutination with both anti-A and anti-B sera. He marries a woman whose blood shows no agglutination with either sera. Which of the following represents the possible genotypes of their biological children? A. I^ A i B. I^ B i C. I^ A I^ B D. ii E. I^ A I^ A Choose the most appropriate answer from the options given below :
Options
- AA and B only
- BA, B and C only
- CC and D only
- DB, D and E only
Correct answer
A. A and B only
Step-by-step solution
The man's blood shows agglutination with both anti-A and anti-B sera, indicating the presence of both A and B antigens. His blood group is AB, and his genotype is I^ A I^ B . The woman's blood shows no agglutination with either sera, indicating the absence of both A and B antigens. Her blood group is O, and her genotype is ii . A cross between the man ( I^ A I^ B ) and the woman ( ii ) produces gametes I^ A and I^ B from the man, and i from the woman. The possible genotypes of their biological children are I^ A i a