Define/Explain: Multiple Allelism.
(N/A) Multiple allelism refers to the presence of more than two alleles for a single gene locus within a population. Although a single diploid individual can only carry a maximum of two alleles at a specific locus,the population as a whole exhibits multiple variations of that gene. $A$ classic example of this phenomenon is the $ABO$ blood group system in humans,where the gene $I$ exists in three allelic forms: $I^A$,$I^B$,and $i$.
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Similar Questions
In humans,the $ABO$ blood group is controlled by the $I$ gene. It has three alleles: $I^A$,$I^B$,and $i$. Although there are three different alleles,six different genotypes are possible. How many phenotypes are observed in this case?
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View SolutionEven if a character shows multiple allelism,an individual will only have two alleles for that character. Why?
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View Solution$A$ 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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View SolutionIdentify the wrong statement with reference to the gene $I$ that controls $ABO$ blood groups.
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View SolutionThe genotypes of a husband and wife are $I^AI^B$ and $I^Ai$ respectively. How many different genotypes and phenotypes are possible among their children?
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