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Ranajit Chakraborty, PhD, is a world-renowned expert in forensic DNA analysis.  
Ranajit Chakraborty, PhD
Specialty: Environmental Health
Sub-Specialty: Epidemiology and Biostatistics
Department: Environmental Health
Title: Robert A. Kehoe Professor of Environmental Health
Phone: (513) 558-4925
Home Page:


BS (Statistics): Indian Statistical Institute, 1967
BS (Genetics): Indian Statistical Institute, 1968
PhD (Biostatistics): Indian Statistical Institute, 1971


genetics, mitochondrial and nuclear gene sequences, forensic DNA analysis, disease susceptibility genes

Recent Awards/Honors:

Honorary Life Member, Croatian Association of Anthropological Genetics, 2001

University of Texas School of Public Health, Scholarship Excellence Award, 1998-2000

Federal Bureau of Investigation Award for “Efforts of Research in DNA Forensics during the Decade of DNA 1988-1998”

University of Texas School of Public Health Research & Teaching Excellence Award, 1997

Man of the Year Award, North American Bengali Association, 1996

University of Texas School of Public Health Research Excellence Award, 1995-1996, 1998-2000 Platinum Jubilee Lecturer, 82nd Session of Indian National Science Congress, 1995

University of Texas Graduate School of Biomedical Sciences Teaching Excellence Award, 1983, 1986, 1994-1995

Fellow of American College of Epidemiology, 1980

Best Student Award, Indian Statistical Institute, 1963-1967

Selected Publications:

Dr. Chakraborty has published more than 400 manuscripts. Some of his recent papers include:

Sankaranarayanan K, Chakraborty R (2000) Ionizing radiation and genetic risks. XII: The concept of "potential recoverability correction factor" (PRCF) and its use for predicting the risk of radiation-inducible genetic disease in human livebirths. Mutat Res 453:129-181.


Sankaranarayanan K, Chakraborty R (2000) Ionizing radiation and genetic risks. VI: The doubling dose estimates from the mid-1950s to the present, the conceptual change to the use of human data on spontaneous mutation rates and mouse data on induced mutation rates for doubling dose calculations. Mutat Res 453:107-127.


Chakraborty R, Rao CR (2000) Selection biases of samples and their resolutions. IN: PK Sen and CR Rao (eds) Handbook of Statistics, Vol 18, Elsevier Science, pp 675-712.


Peterson BL, Su B, Chakraborty R, Budowle B, Gaensslen RE (2000) World population data for the HLA-DQA1, PM and D1S80 loci with least and most common profile frequencies for combinations of loci estimated following NRC II guidelines. J Forensic Sci 45:118-146.

Chakraborty R, Stivers DN, Su B, Zhong Y, Budowle B (1999) The utility of short tandem repeat loci beyond human identification: Implications for development of new DNA typing systems. Electrophoresis 20:1682-1696.


Deka R, Shriver MD, Yu LM, Heidreich EM, McGarvey ST, Bunker CH, Miki T, Hundrieser J, Yin S-J, Raskin S, Barrentes R, Ferrell RE, Chakraborty (1999) Genetic variation at 23 microsatellite loci in 16 human populations. J Genet 78:99-121.


Su B, Xiao J, Underhill P, Deka R, Zhang W, Akey J, Huang W, Shen D, Lu D, Luo J, Chu J, Tan J, Shen P, Davis R, Cavalli-Sforza L, Chakraborty R, Xiong M, Du R, Oefner P, Chen Z, Jin L (1999) Y-Chromosome evidence for a northward migration of modern humans into Eastern Asia during the last ice age. Am J Hum Genet 65:1718-1724.


Su B, Jin L, Hu F, Xiao J, Luo J, Lu D, Zhang W, Chu J, Du R, Geng Z, Qiu X, Xue J, Tan J, O'Brien SJ, Chakraborty R (1999) Distribution of two HIV-1-resistant polymorphisms (SDF1-3'A and CCR2-641) in East Asian and world populations and its implication in AIDS epidemiology. Am J Hum Genet 65:1047-1053.


To set up a media interview, please contact Amanda Harper at 513-558-4657 during normal business hours (M-F, 8:30 a.m. to 5:30 p.m.). After hours, call (513) 558-4553 to be directed to the on-call public information officer.

keywords: genetics, mitochondrial and nuclear gene sequences, forensic DNA analysis, disease susceptibility genes