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Solution


Q.

In a population of 1000 individuals 360 belong to genotype AA, 480 to Aa and the remaining 160 to aa. Based on this data, the frequency of allele A in the population is    [2014]
1 0.4  
2 0.5  
3 0.6  
4 0.7  

Ans.

(3)

According to Hardy-Weinberg principle

       p2+2pq+q2=1;(p+q)2=1

      (AA)p2= 360 out of 1000 individuals

or   p2=0.36

Therefore, p=0.6