This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Social science, Mental health & Genetics, Subject name: Social & Preventive Medicine
The law stating that "the relative frequency of each gene allel tend to remain constant fromgeneration to generation "is known as- 
Select and explain. 
A. Mendel's law, B. Hardy-Weinberg law, C. David-Morgan's law, D. Lamarck's law
B: Hardy-Weinberg law
Answer: B: Hardy-Weinberg law 
Explanation: Hardly-weinberg law is related to population genetics Hardly-weinberg law states that the relative frequencies of each allele tends to remain constant from generation to generation in the absence of of forces that change the gene frequencies. ref; (page no;827) 23rd edition of PARK&;s textbook of Preventive and Social medicine