Which of the following events do not occur in non-stop mRNA decay?
A. A string of lysine residues are added at the C-terminus of the polypeptide.
B. The stalled ribosome recruits Ski7 protein.
C. Ski7 protein degrades the defective protein by recognizing the C-terminal poly(Lys) tag.
D. An exosome ribonuclease degrades the mRNA.
C
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Which white blood cells comprise 20% to 30% of the circulating WBCs and are the cells that function in the body's specific immune system?
A. Monocytes B. Lymphocytes C. Neutrophils D. Eosinophils E. Basophils
Aside from HIV infections, the greatest number of global disease-related deaths comes from
a. diarrheas. b. various respiratory infections. c. hepatitis. d. malaria. e. tuberculosis.
An effect of deforestation has been to ________
A) decrease the amount of carbon dioxide in the atmosphere B) increase the amount of carbon dioxide in the atmosphere C) increase the rate at which carbon dioxide is incorporated into organic material D) decrease the rate of carbon dioxide production through cellular respiration
Most of the bacteria that live in and on your body are:
a. chemoautotrophs. b. photoautotrophs. c. chemoorganotrophs.