Six hundred settlers move from the mainland to a nearby island inhabited by only 200 individuals, bringing with them new alleles. Given the following data set, what is the weighted average of the allele frequency among island residents and mainland immigrants?

+1 vote

Mainland                                                                                                  

A1=0.60                                                                                                   

A2 =0.40                                                                                                 

 

 

Island

  A1=1.0

 A2=0

 

  

0.70

  

0.90

  

0.60

  

0.40

 

asked Jun 24, 2013 in Genetics by GeneX ~Top Expert~ (7,947 points)
    

1 Answer

+1 vote

 

0.70

pN, which is equal to (1-m)(pI) + (m)(pC). m = 600/800 = 0.75, which is the fraction of alleles from the mainland. p= 0.60 and p= 1.0, which are the frequencies of the Aallele in the two populations. Thus, p= (1 - 0.75)(1.0) + (0.75)(0.60) = 0.70

answered Jun 24, 2013 by GeneX ~Top Expert~ (7,947 points)

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