In man four types of blood groups A, B, AB and O are controlled by three alleles of a gene. What is the mechanism of inheritance of the blood group?
Answers
Answered by
7
The number of alleles(genes)in the body is far greater than the number of chromosomes. There may be 300 alleles for a single gene but human can inherit only two of these genes, each from either of his parents.
The gene which is responsible for blood group has three alleles (IA , IB ,i)
if a person inherit IA and IA alleles from the parents his blood group will be A
if he inherit IA and i alleles his blood group will be A because IA is dominant over i
if he inherits IB and IB or IB and i his blood group will be B
If the alleles are i and i his blood group will be O
The gene which is responsible for blood group has three alleles (IA , IB ,i)
if a person inherit IA and IA alleles from the parents his blood group will be A
if he inherit IA and i alleles his blood group will be A because IA is dominant over i
if he inherits IB and IB or IB and i his blood group will be B
If the alleles are i and i his blood group will be O
Similar questions