In addition to blood type ABO classification, blood type is also classified as positive or negative based on whether they have the Rh factor or not, which is controlled by an entirely different set of genes. Rh positive is the dominant allele and Rh negative is the recessive allele. A woman who has blood type B/Rh positive has a daughter who is type O/Rh positive and a son who is type A/Rh negative. Which of the following is a possible phenotype for the father? AO/Rh negative O/Rh positive BO/ Rh negative O/Rh negative AB/Rh negative
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The mother has blood type B, so her genotype must be either BB or BO. Show more…
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The ABO blood groups in humans are determined by a multiple-allele system in which $I^{A}$ and $I^{B}$ are codominant and are both dominant to $I^{\circ}$. A newborn infant is type $A$ The mother is type O. Possible phenotypes of the father are $a. A, B,$ or $A B$ $b. \mathrm{A}, \mathrm{B},$ or $\mathrm{O}$ $c. O$ only. $d. \mathrm{A}$ or $\mathrm{AB}$ $e. A$ or $\mathrm{O}$
The ABO blood groups in humans are determined by a multiple-allele system in which $I^{A}$ and $I^{B}$ are codominant and are both dominant to $I^{O}$. A newborn infant is type $A$. The mother is type O. Possible phenotypes of the father are a. $A, B,$ or $A B$ b. $A, B,$ or $O$ c. $\mathrm{O}$ only. d. A or AB. e. A or $\mathrm{O}$
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