Normal hemoglobin is a tetramer, consisting of two molecules of β hemoglobin and two molecules of α hemoglobin. In sickle-cell disease, as a result of a single amino acid change, the mutant hemoglobin tetramers associate with each other and assemble into large fibers. Based on this information alone, we can conclude that sickle-cell hemoglobin exhibits
A) altered primary structure.
B) altered secondary structure.
C) altered tertiary structure.
D) altered quaternary structure.
E) altered primary structure and altered quaternary structure; the secondary and tertiary structures may or may not be altered.
Blood PH Curve Hemoglobin
Normal conduction pathway in the heart.
Normal and enlarged tonsils.
Right lateral view showing low normal curves of the vertebral column
If the entropy of a collection of molecules in 5000 boxes is 1.76 × 10-20 J/K, how many ...
Illustration of the anatomy of a normal subject (A) and a patient with sleep apnea (B)