Question
With the help of one example, explain the phenomena of co-dominance and multiple allelism in human population.
✓
Answer
ABO blood group in human being is an example of multiple allelism.
Three alleles for the gene $I$ i.e. $I^A, I^B$, $i$ When $I^A$ and $I^B$ are present together the blood group is $A B$. Both $A$ and $B$ are expressed and is called codominance.
Three alleles for the gene $I$ i.e. $I^A, I^B$, $i$ When $I^A$ and $I^B$ are present together the blood group is $A B$. Both $A$ and $B$ are expressed and is called codominance.
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