Question

2.There are no antigens present on the red blood cells of a person having AB blood group. True / False ​

Answer 1

Answer:

false this answer because it is false according to science

Answer 2

This is a false statement.

Explanation:

• Blood group is determine by three alleles; $I^{a} , I^{b} and I^{o}$ allele.
• $I^{a}$ alleles are responsible for production of A antigen. $I^{b}$ alleles are responsible for production of B antigen. $I^{o}$ allele does not specify neither A nor B antigen .$I^{a} and I^{b}$ are codominant and $I^{o}$ allele is recessive to $I^{a} and I^{b}$
• persons with Blood group A have either $I^{a} I^{a} or I^{a}I^{o}$ genotype and have A antigens on their surfaces of RBC and therefore have anti B antibody in their serum.
• Persons with blood group  B have$I^{b}I^{b} or I^{b}I^{o}$ genotype and have B antigens on their surfaces of RBC and therefore have anti A antibody in their serum.
• Persons with blood group AB have $I^{a} I^{b}$ genotype and have both antigen  A and antigen B on their RBC and therefore have no antibody in their serum.
• Persons with blood group O have $I^{o} I^{o}$ genotype and have neither A nor B antigen on RBC. they have both anti A and anti B antibody in serum.