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# A different DISCUSSION ?

Hey today i will try to introduce the subject i like the least BIOLOGY ! ( i hope it would be appreciated ...:D) Actually i found a good problem that i would like to share at my level so you can think of it as a mathematical problem and solve it that way if you could ! (typical biology problem) the problem as told by my friend: 16% of a population have blood group "O" and 25% of the population have blood group pure "A". Now from the above data compute what %(percent) of population will have blood group "AB" ?

If it's not appropriate to post these here please tell me !

Note by Ritvik Choudhary
4 years ago

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Using the Hardy-Weinberg equations for three alleles, we get: $A+B+O=1$ $A^2+B^2+O^2+2AB+2AO+2BO=1$ We also know: $O^2=.16$ $A^2=.25$ Which implies: $O=.4$ $A=.5$ Thus $$B=.1$$ and the frequency of blood group AB is $2AB=.1$ Perhaps Brilliant is not yet the place for such questions. These kinds of topics require an odd background to solve. · 4 years ago

Shouldn't that be $$A^2 + B^2 + O^2 + 2AB + 2AO + 2BO = 1$$? · 4 years ago

Thanks. · 4 years ago

Shall we assume Hardy-Weinberg Equilibrium? · 4 years ago