Hemoglobin variants are a part of the normal embryonic and fetal development, but may also be pathologic mutant forms of hemoglobin in a population, caused by variations in genetics.
Hemoglobin variants are a part of the normal embryonic. Hemoglobin variants are a part of fetal development. Hemoglobin variants may also be pathologic mutant forms of hemoglobin in a population. A population is caused by variations in genetics.