Which technique is used to help reduce experimenter bias?
A) Create experiments that are reproducible and repeatable.
B) Control extraneous variables as much as possible.
C) Include a control group in your experiment.
D) Be aware of potential placebo effects.
E) Keep the experimenter blind to the conditions in an experiment or its purpose.
E) Keep the experimenter blind to the conditions in an experiment or its purpose.
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Which of the following statements about transcription in prokaryotes is incorrect?
A. In prokaryotes, a transcriptional activator protein must bind the activator binding site prior to RNA polymerase complex binding at the promoter. B. In prokaryotes, the binding of a repressor protein to the repressor binding site prevents the binding of RNA polymerase complex. C. In prokaryotes, the RNA polymerase complex will bind at the promoter in the presence or absence of an activator protein and transcription will proceed. D. If an activator protein binds at site far from the promoter sequence, transcription does not proceed efficiently. E. The binding sequence for an activator can be upstream of the promoter, downstream of the promoter, or overlapping with the promoter sequence.
You are examining an electron micrograph of cells obtained from a new deep-sea life form. Upon closer examination, you notice that there are two dark lines separated by a lightly stained region. These results are similar to the observation of which investigator(s) of membrane structure?
A) Robertson B) Gorter and Grendel C) Unwin and Henderson D) Overton E) Singer and Nicolson
The enzyme located in the inner mitochondrial membrane that synthesizes ATP is known as ________
Fill in the blank(s) with correct word
A marine fish with a cold body temperature that matches its cold surroundings is an example of
A. regulating. B. conforming. C. conditioning. D. negative feedback.