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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Hardly–weinberg law is related to –
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The correct answer is  Hardly-Weinberg law 

The hardly-Weinberg law states that "The relative frequencies of each gene allele tends to remain constant from generation to generation".
Thus, the study of gene frequencies, and the influences which operate to alter the "gene pool" and their long term consequences is the central theme in population genetics.