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
Hardly-weinberg law is related to - 
Select and explain. 
A. Population genetics, B. Health economics, C. Social medicine, D. None of the above
A: Population genetics
Answer: A: Population genetics 
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