Blood groups and other biochemical markers are genetically controlled traits that are suitable for studying population variation, as they are not subjected to environmental influence. The present paper reports the distribution of A1A2BO and Rh blood groups among the Rajputs and Warlis of Dadra and Nagar Haveli. The frequency of blood group O is found to be highest with high frequency of Rh+ve in both the populations. A non- significant difference is found in the observed and expected frequencies indicating both the populations are in Hardy-Weinberg equilibrium. When compared with the other available data of western India, the frequencies of A1A2BO and Rh blood groups among the Rajputs and Warlis are within reported range of frequencies.
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