The ABO blood group is controlled by: | vedclass

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(A) The $ABO$ blood group in humans is controlled by the $I$ gene.This gene exists in three allelic forms: $I^A$,$I^B$,and $i$.- The alleles $I^A$ and

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$I$-gene

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(A) The $ABO$ blood group in humans is controlled by the $I$ gene.This gene exists in three allelic forms: $I^A$,$I^B$,and $i$.- The alleles $I^A$ and $I^B$ produce slightly different forms of the sugar polymer that protrudes from the surface of the plasma membrane of red blood cells.- The allele $i$ does not produce any sugar.- Because humans are diploid organisms,each person possesses any two of the three $I$ gene alleles.

The $ABO$ blood group is controlled by:

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

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In humans,four phenotypes of blood groups are due to the presence of antigen-$A$ and antigen-$B$ on the $RBC$. The chromosome that carries the gene controlling these antigens is:

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