Multiple choice Oxygen dissociation curve shifts to right in case of presence of high CO2 concentration low CO2 concentration chemical like DPG both 1 and 3 Reveal answer Fill a bubble to check yourself D Correct answer Explanation The oxygen dissociation curve shifts to the right (Bohr effect) when hemoglobin's affinity for oxygen decreases. This occurs in conditions of high CO2 concentration, low pH, high temperature, and increased levels of 2,3-DPG.