Podcast
Questions and Answers
If an individual has the genotype AA for the ABO blood group, what blood type do they have?
If an individual has the genotype AA for the ABO blood group, what blood type do they have?
- Blood type AB
- Blood type A (correct)
- Blood type B
- Blood type O
If a child inherits an A gene and an O gene, but both parents do not have blood type O, which blood type does the child likely have?
If a child inherits an A gene and an O gene, but both parents do not have blood type O, which blood type does the child likely have?
- Blood type A (correct)
- Blood type B
- Blood type O
- Blood type AB
If a child inherits a B gene and an O gene from their parents, what is the probability that they will have blood type O?
If a child inherits a B gene and an O gene from their parents, what is the probability that they will have blood type O?
- 25%
- 100%
- 0% (correct)
- 50%
If two parents with blood type AB have a child, what is the possible blood type of the child?
If two parents with blood type AB have a child, what is the possible blood type of the child?
If a child has blood type AB, what must be the genotype of their parents?
If a child has blood type AB, what must be the genotype of their parents?
Flashcards
Dominant Gene
Dominant Gene
A gene that expresses its trait even if only one copy is present.
Recessive Gene
Recessive Gene
A gene that only expresses its trait when two copies are present.
ABO Blood Group System
ABO Blood Group System
A classification system for human blood types based on the presence of A, B, or O genes.
Blood Group A Inheritance
Blood Group A Inheritance
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Blood Group O Inheritance
Blood Group O Inheritance
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Study Notes
Dominant vs. Recessive Genes
- Dominant genes always express themselves if present.
- Recessive genes will only express if no dominant gene is present (meaning both genes are recessive).
ABO Blood Group System
- Genes A and B are dominant to gene O.
- If a child receives gene A from one parent and gene O from the other, the child's blood type will be A.
- If a child receives gene B from one parent and gene O from the other, the child's blood type will be B.
- A child will only have blood type O if they receive the gene O from both parents.
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