Which of the following proteins is central to starvation survival strategies in many bacteria?
A. RpoS
B. Fts Z
C. Superoxide dismutase
D. ATPase
Answer: A
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The enzyme that catalyzes the addition of new nucleotides to a growing DNA strand is
A. DNA polymerase. B. helicase. C. topoisomerase II. D. DNA ligase. E. DNA replicase.
Which members of Platyhelminthes are parasitic?
a. Planarians and cnidarians b. Flukes and planarians c. Flukes and cnidarians d. Planarians and tapeworms e. Flukes and tapeworms
What is the term for gene regulation that occurs by removing introns and splicing together exons that will be sent to a ribosome?
a. epigenetic level of regulation b. post-transcriptional level of regulation c. translational level of regulation d. post-translational level of regulation
The growth factor that stimulates fibroblasts to divide around a wound is released by
a. other fibroblasts. b. capillary endothelial cells. c. platelets. d. lymphocytes.