This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
[{'content': 'The hemoglobin to appear first in the fetus is ? \nSelect and explain. \nA. Hb A, B. Hb A2, C. Hb F, D. Hb G ow ers', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Hb Gowers o Within the red blood cell mass of an embryo, fetus, child and adult, six different hemoglobins may normal be detected - 1 ) Gower - 1 (C,, e2) 2) Gower - 2 (a2E2) Embryonic hemoglobin 3) Hb poland (C2y2) 4) Hb - F (a2y2) --> Fetal hemoglobin 5) Hb - A (a2(2.) } Adult hemoglobin 6) Hb A2 (a282)", 'role': 'assistant'}]