The first single-gene disorder for which the mechanism of mutation was understood at a molecular level was
A) cystic fibrosis.
B) hemophilia.
C) sickle cell disease.
D) diabetes mellitus.
C) sickle cell disease.
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X-ray crystallography was used to determine the structure of:
A. cholesterol. B. vitamin B12. C. myoglobin. D. insulin. E. All of these choices are correct.
Triglycerides are stored primarily in this type of tissue.
A. adipose B. cardiac C. epithelial D. nervous E. muscular
Discuss how the therapy for PKU would be different if the disease was not caused by the essential amino acid
phenylalanine, but rather by a non-essential amino acid. Would the disorder be potentially more or less life-threatening? Explain your reasoning. What will be an ideal response?
Which phylum includes members that have a body divided into three regions called the visceral mass, head-foot, and mantle?
a. Rotifera b. Mollusca c. Nemertea d. Platyhelminthes