Why is green fluorescent protein (GFP) very useful in visualizing fusion proteins in eukaryotes?
A. The reaction is only dependent on the presence of GFP and ATP.
B. It is easily cloned and expressed in bacterial cells.
C. The presence of just a few molecules of GFP fusion proteins can be sufficient to create fluorescence.
D. It is derived from fireflies, which are easy to cultivate in the lab.
E. The GFP protein recognizes and binds to fusion proteins, allowing the location of the fusion protein to be determined.
C
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The fruiting structures formed by secondary mycelia of basidiomycetes are known as
A. mushrooms. B. yeasts. C. lichen. D. ascocarps. E. basidia.
Research in Colorado’s San Juan Mountains has illustrated that in comparison to stands of lodgepole pine and Englemann spruce, stands of trembling aspen are not likely to ____.
a. grow in warmer soil b. grow in soil with higher nitrate concentrations c. be associated with different arrays of soil-dwelling organisms d. allow more sunlight to reach the soil surface e. retain their leaves through the winter
Which of the following does NOT contribute to a pathogen's invasiveness?
a. Toxins b. Capsule c. Cell wall d. Hyaluronidase e. Ligands
Some ________ may have pili.
A. eukaryotes B. archaea C. bacteria D. prokaryotes E. eukaryotes and bacteria