Which of these is an antimicrobial protein that has a much greater role in the third line of defense than in the second line of defense
a. antibody
b. complement
c. interferon
d. lysozyme
Ans: a. antibody
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In eukaryotes, mitochondria are the organelles primarily involved in:
A. export of enzymes. B. lipid synthesis. C. phospholipid assembly. D. protein synthesis. E. energy release/capture.
Which process produces multiple proteins from the same primary transcript in the same cell?
A. chromatin remodeling B. histone modification C. combinatorial control D. alternative splicing E. RNA editing
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've finished your homework, so you settle into your favorite chair to play your video games. "Going into your Skinner box?" your roommate jokes. What does a video game have in common with the traditional Skinner box? (Check all that apply)
_____ conditioned stimulus is associated with a reward _____ food pellets are dispensed _____ involves involuntary behavior by the subject _____ involves voluntary behavior by the subject _____ rapid feedback _____ rat subjects _____ repeated series of actions and rewards Clarify question: What is the key concept addressed by the question? What type of thinking is required? Gather Content: What do you already know about what was studied with the Skinner box and what behaviors are exhibited when playing video games? What other information is related to the question? Choose Answer: Given what you now know, what information is most likely to produce the correct answer? Reflection 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?