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Background and ObjectivesThe Bombay phenotype cases do not express the ABH antigens on red blood cells and in body secretions because of the inactivation of H (FUT1) gene and Secretor (FUT2) genes. This rare phenotype was first detected in Mumbai, India, previously known as ‘Bombay’. The presence of T725G mutation in FUT1 gene and deletion of FUT2 gene, both in homozygous condition, has been found...