<prompt> All of the following lead to increased dissociation of O2 from Hb exceptHbFIncreased CO2Increase HIncrease Temperature  <response>: Fetal hemoglobin or fetal hemoglobin, also hemoglobin F or HbF is the main oxygen transpo protein in the human fetus during the last seven months of development in the uterus and in the newborn until roughly 6 months old.Ref: Ganong;s Review of Medical Physiology; 24th edition; page no:641 