Small interfering RNA (siRNA) regulates gene expression by:
A. inhibiting transcription.
B. inhibiting splicing.
C. inhibiting translation by binding to RNA
transcripts.
D. inhibiting translation by degrading RNA
transcripts.
E. inhibiting rRNA synthesis.
D
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Which of the following adds RNA nucleotides, one at a time, during transcription?
a. RNA polymerase b. DNA polymerase c. RNA nuclease d. transfer RNA e. ribosomal RNA
The Q cycle can
A) transport protons out of the matrix without additional electron transfer between complexes I and III. B) associate with complex IV. C) transfer electrons to O2. D) generate superoxide. E) All of the above can be performed by the Q cycle.
Parathyroid hormone and calcitonin both function to regulate _______________
Fill in the blank(s) with the appropriate word.
The most likely mode of transmission of pneumonic plague between humans is
a. Direct contact. b. Droplet transmission. c. Fomite. d. Vector. e. Vehicle transmission.