Podcast
Questions and Answers
If an individual is Rh- and is exposed to Rh+ blood, what will happen?
If an individual is Rh- and is exposed to Rh+ blood, what will happen?
In the ABO blood system, if a person with blood type A marries someone who is heterozygous for blood type B, what is the probability of having a child with blood type AB?
In the ABO blood system, if a person with blood type A marries someone who is heterozygous for blood type B, what is the probability of having a child with blood type AB?
What is the genotype of a man with blood type O if his mother had blood type B?
What is the genotype of a man with blood type O if his mother had blood type B?
If a person with blood type AB marries someone with blood type O, what is the likelihood of their child being blood type B?
If a person with blood type AB marries someone with blood type O, what is the likelihood of their child being blood type B?
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Can two individuals with blood types A and B respectively have a child with blood type O?
Can two individuals with blood types A and B respectively have a child with blood type O?
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If a man with blood type A marries a woman with blood type AB, what is the probability of their child having blood type A?
If a man with blood type A marries a woman with blood type AB, what is the probability of their child having blood type A?
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What happens if an Rh- individual receives a transfusion of Rh+ blood?
What happens if an Rh- individual receives a transfusion of Rh+ blood?
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In the ABO system, if two parents with blood types A and B respectively have a child with blood type AB, what must be true about the parents' genotypes?
In the ABO system, if two parents with blood types A and B respectively have a child with blood type AB, what must be true about the parents' genotypes?
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If a woman with blood type B marries a man with blood type O, what is the likelihood of their child having blood type O?
If a woman with blood type B marries a man with blood type O, what is the likelihood of their child having blood type O?
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Can two individuals both of which are Rh+ have a child that is Rh-?
Can two individuals both of which are Rh+ have a child that is Rh-?
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Study Notes
Rh Incompatibility
- If an Rh- individual is exposed to Rh+ blood, their immune system will produce antibodies against the Rh factor. This can be problematic during pregnancy if a mother is Rh- and the fetus is Rh+.
ABO Blood Group Genetics
- If a person with blood type A marries someone who is heterozygous for blood type B (genotype BO), the probability of having a child with blood type AB is 50%.
- The possible genotypes for the child are: AB, AO, BO, and OO.
- AB genotype results in blood type AB.
- A man with blood type O has the genotype OO.
- Since blood type O is recessive, both parents must have at least one O allele.
- If a person with blood type AB marries someone with blood type O, the likelihood of their child being blood type B is 50%.
- The possible genotypes for the child are: AB, AO, BO, and OO.
- BO genotype results in blood type B.
- Two individuals with blood types A and B respectively can have a child with blood type O.
- If both parents are heterozygous (AO and BO), they can each contribute an O allele.
- If a man with blood type A marries a woman with blood type AB, the probability of their child having blood type A is 50%.
- The possible genotypes for the child are: AA, AO, AB, and BO.
- AA and AO genotypes both result in blood type A.
- If an Rh- individual receives a transfusion of Rh+ blood, they may develop antibodies against the Rh factor. This can lead to a severe reaction if the individual receives another Rh+ transfusion in the future.
ABO Blood Group Inheritance
- If two parents with blood types A and B respectively have a child with blood type AB, then:
- At least one parent must be heterozygous for their blood type (AO or BO).
- Both parents must have at least one allele that codes for either the A or B antigen.
- If a woman with blood type B marries a man with blood type O, the likelihood of their child having blood type O is 50%.
- The woman can have either the BB or BO genotype.
- The man has the OO genotype.
- The possible genotypes for the child are: BO and OO.
- OO genotype results in blood type O.
Rh Factor Inheritance
- Two individuals, both Rh+, can have a child that is Rh-.
- If both parents are heterozygous (Dd) for the Rh factor, they can each pass on a recessive "d" allele.
- The child will inherit two "d" alleles and be Rh- (dd).
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Description
Test your knowledge on blood types, blood grouping vocabulary, and concepts like codominance and multiple alleles. Learn about antigens, antibodies, and transfusion in the context of genetics.
