Name: ABO/Rh Simulated Blood Typing Worksheet Anti-A Sera Anti-B Sera Anti-Rh Sera Blood Type – A Person W 0- Person X AL Person Y BHPerson Z A Answer the following questions: 1. What is Person X’s blood type? What antigens are present on the surface of the red blood cells in Person X? 2. What is Person Y’s blood type? What antibodies are present in Person Y’s plasma? 3. Person Z needs a transfusion. What blood types might Person 2 safely receive! Explain 4. Could a man with type AB blood be the father of a child with type O blood? Explain 5. Could a child with type B blood with a mother of type A blood have a father with type A blood? Explain. 10158 w n ly when forry wyd a 1 . Age Reproduction o Sic Inc. Newt of maybeden
The Correct Answer and Explanation is :
1. What is Person X’s blood type? What antigens are present on the surface of the red blood cells in Person X?
To determine Person X’s blood type, we would examine the reactions with the anti-sera provided in the worksheet. The anti-A sera will agglutinate if Person X’s blood contains A antigens, anti-B sera will agglutinate if Person X’s blood contains B antigens, and anti-Rh sera will agglutinate if Person X’s blood is Rh-positive.
From the information provided, Person X reacts with anti-A and anti-Rh sera but not with anti-B sera. This indicates that Person X has Type A, Rh-positive blood. The antigens present on their red blood cells are A antigens and Rh antigens.
2. What is Person Y’s blood type? What antibodies are present in Person Y’s plasma?
To determine Person Y’s blood type, we follow a similar method. If anti-A sera agglutinates, Person Y has Type A blood; if anti-B sera agglutinates, Person Y has Type B blood. If anti-Rh sera agglutinates, Person Y is Rh-positive, otherwise Rh-negative.
Person Y reacts with anti-B and anti-Rh sera, but not with anti-A. This suggests that Person Y has Type B, Rh-positive blood. The antibodies present in Person Y’s plasma would include anti-A antibodies (since Person Y doesn’t have A antigens) and anti-Rh antibodies (if Person Y is Rh-negative). However, because Person Y is Rh-positive, they likely do not have Rh antibodies unless exposed to Rh-negative blood in the past.
3. Person Z needs a transfusion. What blood types might Person Z safely receive? Explain.
Person Z has Type A blood. When receiving a blood transfusion, the donor blood must match the recipient’s blood type, with consideration for both ABO and Rh factors.
- ABO compatibility: Person Z can receive Type A or Type O blood (Type O is the universal donor for the ABO system).
- Rh compatibility: If Person Z is Rh-positive, they can receive both Rh-positive and Rh-negative blood. If Person Z is Rh-negative, they should only receive Rh-negative blood.
4. Could a man with type AB blood be the father of a child with type O blood? Explain.
No, a man with Type AB blood cannot father a child with Type O blood. A man with Type AB blood has A and B antigens on his red blood cells, meaning he could only pass on either an A or a B allele. For a child to have Type O blood, both parents must contribute an O allele (which would mean each parent carries at least one O allele). Therefore, the man’s Type AB blood would not allow for the inheritance of an O allele, making it impossible for him to father a Type O child.
5. Could a child with type B blood and a mother of type A blood have a father with type A blood? Explain.
Yes, a child with Type B blood could have a mother with Type A blood and a father with Type A blood. For this scenario, both parents must carry the B allele in addition to their A alleles (genetically, they could both be heterozygous, i.e., AB). The mother with Type A blood could carry an O allele (genotype AO), and the father with Type A blood could also carry an O allele (genotype AO). If the child inherits the B allele from the father and the O allele from the mother, the child would have Type B blood.
Thus, the father can have Type A blood but still contribute the B allele to the child, which is a possibility if both parents are heterozygous.