An observed mutation seen in it has glutamic acid replaced by valine.
An observed mutation seen in it has glutamic acid replaced by valine. A protein similar to it has been found in ascidians and is named vanabin. Typically seen in an F variety in the fetus that uses a gamma subunit, its affinity to carbon dioxide is described by the Haldane effect. A defect in its synthesis is called Thalassemia and is caused by reduced production of its alpha or beta side chains. Composed of 4 groups each weighing about 17,000 Daltons with a central porphyrin, it has a similar "myo" variety that differs in oxygen bonding. FTP, identify this iron containing protein found in red blood cells. 
An observed mutation seen in it has glutamic acid replaced by valine.
{Hemoglobin} (I guess on the first clue you can accept “{gene} for {hemoglobin}”)