Which of the following is one of the best examples of a commonly shared signaling pathway
connected to memory in invertebrates and vertebrates?
a. Cyclic AMP.
b. Cycling RNA
c. RNA cyclase.
d. RNA binding protein
e. non-responsive binding protein
A
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The Gram-staining procedure is an example of ________.
A. negative staining B. differential staining C. fluorescent staining D. simple staining
The main difference between prophase I and II is that in prophase I
A. synapsis and crossing over occur. B. chromosomes coil. C. the nucleolus disappears. D. the nuclear membrane disappears. E. the spindle forms.
How could the Hershey and Chase experimental procedure be redesigned to support a hypothesis that RNA carries genetic information?
A. Extract RNA from Escherichia and mix it with the T2 bacteriophage B. Replace T2 bacteriophage with an RNA virus C. Replace Escherichia with an RNA virus D. Use 35S to label an RNA virus and 32P to label a DNA virus E. Use 35S and 32P to label the same components of an RNA virus and T2 bacteriophage, then add both viruses to Escherichia cells
Using the ICTV taxonomy system, a virus name ending in "viridae" would be part of which grouping?
A. Family B. Subfamily C. Genus D. Order