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Transferrin and group-specific component subtypes were studied by isoelectric focusing of sera from 253 Parsis in India. The frequencies of TfC1, TfC2, TfC3 and TfC4 were found to be 0.8083, 0.1719, 0.019 and 0.0020, respectively. TfB was present in a frequency of 0.0059. The frequencies of Gc alleles were found to be 0.4478 for GcIF, 0.3875 for GcIS and 0.1647 for Gc2. The gene frequency of GcIF was rather high in comparison with Iranian and Indian populations.
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Undevia et al. (1987) studied this question.
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