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6) In a paternity case, a single mother claimed that a certain man was the father of her baby. The man denied it, claiming that her current boyfriend was the father. The court ordered a blood test (much cheaper than DNA testing) to see if he could be ruled out as the father. The mother was Type O and the baby was Type O. The man was Type AB. Is it possible that he was the father? Why or why not?

Respuesta :

jtbouvier9274

it is not possible for him to be the father blood type "O" is a recessive trait wile "A" and "B" are dominate the kid would be either "AO" or "BO" if he was the father

Histrionicus

The mother was Type O and the baby was Type O. The man was Type AB. Is it possible that he was the father - No because Type O is a recessive blood type and man has no allele for O type as he was AB.

ABO blood type system:

  • Type A can have genotype IAIA or IAi
  • Type B can have genotype IBIB or IBi
  • Type AB has genotype IAIB due to codominance when IA and IB are together.
  • Type O have a genotype ii which means it is possible if both alleles are recessive.

here we know,

  • person     blood type    genotype

           mother -      type O -           ii

            father -        type AB -         IAIB

             baby -          type O -             ii

  • We also know that the genes of a child come from each parent 50%
  • Then from man here, IA and IB come that are not present in the child thus it is not possible.

Thus, The mother was Type O and the baby was Type O. The man was Type AB. Is it possible that he was the father - No because Type O is a recessive blood type and man has no allele for O type as he was AB.

Learn more:

https://brainly.com/question/2645377

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