Task: Explanation
Input (English): Dronamraju Krishna Rao (born January 14, 1937) is an Indian-born geneticist and president of the Foundation for Genetic Research in Houston, Texas. He was born in Pithapuram, in the state of Andhra Pradesh, India. One focus of his work has been the research of J. B. S. Haldane. Question: Dronamraju Krishna Rao focused his work on the research of this british-born scientist who passed on 1 december what year? Answer: 1964
Output (English):  One focus of his work has been the research of J. B. S. Haldane.