Station 6: Multiple AllelesKylie Jenner and Travis Scott had baby Stormi, but they don't know her blood type. Kylie is type O and Travis is Type AB. What are the possible blood types that Stormi could be?If they have another baby, but Travis thinks its not his. The baby has type O blood. Can Travis be the father?
Solución de tutoría real
Respuesta rápida
Stormi could have either type A or type B blood. If the baby has type O blood, Travis cannot be the father.
Solución paso a paso
Step 1:
Determine possible alleles for Stormi:
-Kylie Jenner's blood type is O, which means her genotype is \(ii\).
-Travis Scott's blood type is AB, which means his genotype is \(I^ A I^ B\).
Step 2:
Possible combinations for Stormi:
-From Kylie (\(i\)) and Travis (\(I^ A\)): \(I^ A i\) (Type A)
-From Kylie (\(i\)) and Travis (\(I^ B\)): \(I^ B i\) (Type B)
Therefore, Stormi could have type A or type B blood.
Step 3:
Determine if Travis can be the father of a baby with type O blood:
-For a baby to have type O blood, the genotype must be \(ii\).
-Since Travis has no \(i\) allele (he is \(I^ A I^ B\)), he cannot pass an \(i\) allele to a child.
Therefore, if the baby has type O blood, Travis cannot be the father.
Supplemental Knowledge:
Blood type inheritance follows the principles of Mendelian genetics. The ABO blood group system is determined by the presence of antigens on the surface of red blood cells, which are controlled by multiple alleles:
Type A: Can be AA or AO
Type B: Can be BB or BO
Type AB: Must be AB
Type O: Must be OO
Kylie Jenner's blood type is O (genotype OO), and Travis Scott's blood type is AB (genotype AB).
Real-Life Connections:
Knowledge of genetics and inheritance patterns is invaluable in many life situations, from determining paternity to understanding genetic disorders and making informed medical decisions.
Imagine being faced with the responsibility of determining paternity based on blood type; knowing how to interpret genetic inheritance can provide clarity and lead to further actions being taken by either party involved in such matters.
For those who want to deepen their understanding of genetics and inheritance patterns, UpStudy offers a range of tools and resources designed to make learning more interactive and effective. Our live tutor question bank can provide detailed explanations and help you master various biological concepts with ease.
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