Question

Explain how humans are able to produce one type of hemoglobin as they develop in utero, then produce another to use after birth

Answer 1

Hemoglobin F has a different composition from the adult forms of hemoglobin, which allows it to bind (or attach to) oxygen more strongly. This way, the developing fetus is able to retrieve oxygen from the mother's bloodstream, which occurs through the placenta found in the mother's uterus.