The point at which two organisms diverged from a common ancestor
A. can be determined by comparing the nucleic acid sequences.
B. depends on translational control.
C. depends on metabolism.
D.
is determined on Mac Conkey's media.
A
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When arginine is added to a culture growing exponentially in a medium without arginine, what occurs?
A) All cellular growth ceases. B) Growth continues, but the production of enzymes required for the synthesis of arginine ceases. C) Growth continues, but the production of enzymes required for the synthesis of arginine increases. D) The cell returns to the lag stage of growth to synthesize the proteins necessary for the metabolism of arginine.
Your research team has been asked to quantify levels of cellular RNAs in rats before and after exercise. The primary focus of your work will be to analyze the
A. proteome. B. spliceosome. C. nucleosome. D. different RNA motifs. E. transcriptome. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about the transcriptome? Consider Possibilities · Consider the different answer options. Which can you rule out? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
A type of natural selection in which organisms with phenotypes at both extremes of the phenotypic range are favored by the environment
One type of symbiotic relationship between a fungus and a plant involves
A. nitrogen fixation. B. lichen. C. mycorrhiza. D. endospores.