The haemoglobin of a human foetus:

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(B) : Oxygen is required for aerobic respiration and diffuses from a region of high concentration to a region of low concentration from the mother's b

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has a higher affinity for oxygen than that of an adult

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(B) : Oxygen is required for aerobic respiration and diffuses from a region of high concentration to a region of low concentration from the mother's blood to the blood of the foetus.The haemoglobin of the foetus $(HbF)$ has a higher affinity for oxygen than that of adult haemoglobin $(HbA)$,which facilitates the efficient transfer of oxygen across the placenta.Carbon dioxide,a waste product of aerobic respiration,diffuses in the opposite direction from the foetus to the mother.

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