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Title: Frequency of blood types of AB0 system? Post by: Johulus on Nov 29, 2015 In a observed population frequency of blood type A is 42%, of blood type B 17%, of blood type AB 7% and of blood type 0 34%. The blood type is determined by 3 alleles: codominant IA and IB and by recessive I0. Combinations of these elleles produce the following fenotypes:
IA IA, IAI0 > A IB IB, IB I0 > B IA IB > AB I0 I0 > 0 Determine the frequency of I0 allele in population. Determine the frequency of IA and IB alleles in population. How could I calculate this. Usually I used Hardy-Weinberg equation: p2+2pq+q2=1. But up to now I always solved only tasks where there are two alleles: one dominant and one recessive. How should I solve this task since now I have three alleles of which 2 are codiminant and one recessive? Title: Re: Frequency of blood types of AB0 system? Post by: bio_man on Nov 29, 2015 Try this...
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