RNA editing by nucleotide insertion and deletion is catalyzed by the:
A. spliceosome.
B. editosome.
C. deletosome.
D. RNase A enzyme.
B
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Humans belong to domain ________, which is distinguished by cells that have ________.
A) Prokarya; organelles B) Archaea; ancient organelles C) Eukarya; organelles D) Prokarya; proteins
A pathologic state begins with contact with a microbe.
Answer the following statement true (T) or false (F)
Four of the five answers listed below are the result of ADH (antidiuretic hormone) secretion. Select the exception
a. Water is reabsorbed in the distal tubule. b. The fluid volume of blood increases. c. The solute concentration in the blood rises. d. The distal tubule and collecting duct become more permeable to water. e. Urine becomes more concentrated.
Like skeletal muscle, cardiac muscle:
A. relies on calcium and ATP to contract B. is controlled by the stimulation of motor units C. uses temporal summation to increase contractile force D. has both fast twitch and slow twitch muscle fiber types E. is multinucleate