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Question: Answered & Verified by Expert
In Hardy-Weinberg equation, the frequency of heterozygous individual is represented by:
BiologyEvolutionNEETNEET 2016 (Phase 2)
Options:
  • A p2
  • B 2pq
  • C pq
  • D q2
Solution:
1488 Upvotes Verified Answer
The correct answer is: 2pq
Hardy-Weinberg principle says that the sum total of all the allelic frequencies of a gene is 1 and the possible frequencies of above mentioned genotypes, i.e., AA, aa and Aa are p2, q2 and 2pq, respectively. So mathematically this statement can be written as 
p2 + 2pq + q2 = 1, where

p2 = Homozygous dominant individuals

2pq = Heterozygous individuals

q2 = Homozygous recessive individuals

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