Elongation of the polypeptide continues as long as a new tRNA molecule situates in the:
A) M site of the ribosome. B) A site of the ribosome.
C) P site of the ribosome. D) E site of the ribosome.
Answer: B
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A woman suffers from chronic dizzy spells, resulting in difficulty keeping her body vertical. Which reflex is involved?
A. Withdrawal reflex B. Vestibular reflex C. Startle reflex D. Patellar tendon reflex
Oxygen is more electronegative than carbon
Indicate whether this statement is true or false.
Protons and electrons exist in every atom nucleus except hydrogen. Is this statement true or false and why?
What will be an ideal response?
A heart valve opens and closes due to
a. being pulled by the heart muscle b. pressure differences on the valve's two sides c. Na+ and K+ fluxes during ventricular depolarization d. turbulent flow in the atria and ventricles e. none of the above