<prompt> The gene responsible for folic acid transpo is situated on which chromosome ?105X21  <response>: 21Ref : Folic acid transpo Chromosome location -4 21 q 223. Gene name -- SLC I 9AI solute carrier family 19 folate transpoer, member Gene productfunction -- Transpoer for the intake of folate. Transpo of folate occurs by novel mechanism called potocytosis which functionally couples three components namely the folate receptor, the folate transpoer and v-type h pump. Alleles -- A 80G single nucleotide polymorphism 