MCAT BIOLOGY 1: MOLECULES - EXAM QUESTIONS | WITH 100% CORRECT ANSWERS | LATEST UPDATE | GRADED A+

Do the results of this experimental setup allow the conclusion that Unc45b acts as a cochaperone for the folding of the myosin motor domain? A. Yes, because they show that the Unc45bFlag/Hsp90 complex binds to the synthesized subfragment myosin motor domain. B. Yes, because they show that mutations in Unc45b result in decreased accumulation of type II striated muscle myosin filaments. C. No, because they do not show that the Unc45bFlag/Hsp90 complex enhances the folding of the myosin motor domain. D. No, because they show that the Unc45bFlag/Hsp90 complex does not bind to the native conformation of the myosin motor domain. - C Which of the following is the best explanation for why attempts at predicting protein configuration based upon amino acid sequence have been unsuccessful? A. It is impossible to know the amino acid sequence of a protein without knowing the DNA nucleotide sequence. B. Chaperones help to determine the three dimensional shape of a protein. C. The three-dimensional shape of a protein is based upon hydrogen and disulfide bonding between amino acids, and the number of possible combinations of bonding amino acids makes prediction difficult. D. The amino acid sequence of the same protein may vary slightly from one sample to the next. - C