Q:

Fetal haemoglobin

safaTerkawi
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2022-08-17
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Fetal haemoglobin.

  1. Is the only type identifiable in fetal blood.
  2. Forms the bulk of total haemoglobin for the first year of life.
  3. Has a higher oxygen-carrying capacity than adult haemoglobin.
  4. Binds 2,3-DPI more avidly than does adult haemoglobin.
  5. Has a higher affinity than the adult form for oxygen at low PO2.
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safaTerkawi
2022-08-17
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A. False The adult type appears around mid gestation.

B. False It has almost disappeared by four months.

C. False They have similar oxygen capacities.

D. False It binds it less readily.

E. True This aids oxygen transfer in the placenta.

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