Forums Assignment Help A child has blood group O. If the father has blood group A..

Viewing 2 posts - 1 through 2 (of 2 total)
  • Author
    Posts
  • #1750
    Aakanksha
    Participant

    A child has blood group O. If the father has blood group A and mother blood group B, work out the genotypes of the parents and the possible genotypes of the other offsprings.

    #10318
    ahwriter
    Participant

    Answer

    The blood group characteristic in humans is controlled by three set of alleles, namely, IA, IB, and i. The alleles, IA and IB, are equally dominant whereas allele, i, is recessive to the other alleles. The individuals with genotype, IA IA and IA i, have blood group A whereas the individuals with genotype, IB IB and IB i, have blood group B. The persons with genotype IA IB have blood group AB while those with blood group O have genotype ii. Hence, if the father has blood group A and mother has blood group B, then the possible genotype of the parents will be

    Father Mother

    IA IA or IA i IB IB or IB i

    A cross between homozygous parents will produce progeny with AB blood group.

    A cross between heterozygous parents will produce progenies with AB blood group

    (IAIB) and O blood group (ii).

Viewing 2 posts - 1 through 2 (of 2 total)
  • You must be logged in to reply to this topic.