If a single-stranded RNA virus contains genomic RNA that is identical to the mRNA that it produces, what type of virus is this categorized as?
A. Positive strand
B. Plus strand or positive strand is acceptable.
C. Negative strand
D. Plus strand
E. Minus strand
Answer: B
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50. Place the events in chemical synapse transmission in the correct order
(1) Ca2+ enters axon terminal. (2) Ligand-gated ion channels open in postsynaptic membrane. (3) Neurotransmitter binds to postsynaptic receptor. (4) Action potential reaches axon terminal of presynaptic neuron. (5) Neurotransmitter released by exocytosis.
a. 4, 1, 5, 3, 2b. 4, 3, 1, 5, 2 c. 4, 5, 1, 3, 2 d. 4, 1, 3, 5, 2 e. 4, 5, 2, 3, 1
Cancer cells retain the IF proteins from the tissue of origin even after metastasizing to other tissues. How is this important in the diagnosis and treatment of cancer?
What will be an ideal response?
Scientific writing in this course should always be written in_____
A. The passive voice B. The active voice C. The first person D. There is no preferred writing style
Transfer RNA(tRNA) functions in the process of ________________.
A. DNA replication. B. transcription. C. translation. D. none of these.