In humans,how many genotypes and phenotypes a | vedclass

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(B) The $ABO$ blood group system in humans is controlled by three alleles: $I^A$,$I^B$,and $i$.These three alleles result in the following genotypes:

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$6$ and $4$

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(B) The $ABO$ blood group system in humans is controlled by three alleles: $I^A$,$I^B$,and $i$.These three alleles result in the following genotypes: $I^A I^A$,$I^A i$,$I^B I^B$,$I^B i$,$I^A I^B$,and $ii$. Thus,there are $6$ possible genotypes.The phenotypes produced are $A$,$B$,$AB$,and $O$. Thus,there are $4$ possible phenotypes.Therefore,the number of genotypes is $6$ and the number of phenotypes is $4$.

In humans,how many genotypes and phenotypes are produced by the three different alleles of the $ABO$ blood group system?

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