Consists of hemoglobin, purified from bovine blood, free in the plasmabinds oxygen in the lungs then delivers oxygen to the bodycell-free hemoglobin releases the oxygen more quickly than red blood cellsthe risk of high blood pressure and heart attacks<span>stored at room temperature and compatible with all blood types</span>
Answer: 2. Each subunit represents a separate polypeptide chain, while one polypeptide chain may contain several domains.
Explanation: Each subunit constitutes of one polypeptide chain. A polypeptide chain has one particular gene coding for it. thus it simply implies that a protein must have one gene for each subunit.
Many proteins is made up of different protein domains. A particular domain may appear in a variety of different proteins.
domains are stable on there own, they can be exchanged via genetic engineering between one protein and another.