m having trouble with my genetics study guide, and am stuck on this question. If someone could explain it with the work it would help me so much. Thank you! In humans, the inheritance of the ABO blood
I'm having trouble with my genetics study guide, and am stuck on this question. If someone could explain it with the work it would help me so much. Thank you!
In humans, the inheritance of the ABO blood group system exhibits both complete dominance (alleles IA and IB are dominant to allele i) and codominance (alleles IA and IB). In addition, thalassemia shows incomplete dominance; heterozygotes (Tt) exhibit a mild form of the disease (thalassemia minor) and homozygotes (tt) have a more severe form (thalassemia major).
A man has blood type A and his mother has blood type O. His wife has blood type AB. Both members of the couple have thalassemia minor. What is the probability that they will have a child with:
a. thalassemia minor and blood type A?
b. no anemia and blood type AB?
c. thalassemia major and blood type B?
Blood type can be classified on the basis of the presence and absence of antibodies and antigens on the surface of RBC(red blood cells). In blood group A,B,AB and O antibodies are anti-B, anti-A , no antibody and both A and B antibody respectively.
The antigens are A antigen in blood group A , B antigen in blood group B , AB blood group have both antigens A and B , in blood group O no antigen is present. Punnett square help in determining the blood group of child and possibilities of disease transfer to child .
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