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6 August, 16:54

In humans, ABO blood types refer to glycoproteins in the membranes of red blood cells. There are three alleles for this autosomal gene: IA, IB, and i. The IA allele codes for the A glycoprotein, The IB allele codes for the B glycoprotein, and the i allele doesn't code for any membrane glycoprotein. IA and IB are codominant, and i is recessive to both IA and IB. People with type A blood have the genotypes IAIA or IAi, people with type B blood are IBIB or IBi, people with type AB blood are IAIB, and people with type O blood are ii. If a woman with type AB blood marries a man with type O blood, which of the following blood types could their children possibly have?

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  1. 6 August, 17:45
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    Genotype of mother : IAIB

    Genotype of father : ii

    Gametes from mother are : IA and IB

    Gametes from father are : i and i

    F1 offsprings will show the following combinations:

    a) IAi - type A blood

    b) IBi - type B blood

    So the children's could possible have A or B blood group.
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