On routine tests, the complete blood panel revealed hypochromic, microcytic anemia with decreased Hb levels of 12.9 g/dL, as well as normal HTC 40.9/%, decreased MCV 78.5/fL, MCHC 31.6/g/dL, and MCH 24.8/pg. The gene discussed is GSTM1; the disease is anemia.