Viruses are not considered living organisms because they
A) cannot reproduce by themselves.
B) are structurally very simple.
C) can only be visualized using an electron microscope.
D) are typically associated with disease.
E) are ubiquitous in nature.
A
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You are asked to participate in a clinical trial for a new drug that can activate telomerase. Which of the following is a likely risk of such a drug?
A. decreased capacity for tissue repair B. increased vulnerability to cancer C. premature aging D. decreased telomere length Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain? Gather Content · What do you already know about telomeres and telomerase? Consider Possibilities · What other information is related to the question? Which information is most useful? 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?
Which of the following statements about dendrites is false?
A) A single cell's dendrites form a dendrite tree B) Variation in the form and shape is primarily responsible for the diversity of neuronal shapes C) Dendrites may be more than a meter in length in giraffes D) Dendritic spines appear to be subject to modification as a result of experience
Arabidopsis thaliana is a model organism for studying the molecular biology of
a. fruit flies. b. fungi. c. plants. d. vertebrates.
Ureaplasma conserves energy and compensates for an absent electron transport chain by creating chemiosmotic energy gradients and ATP from the breakdown of ________ into ammonia/ammonium.
Fill in the blank(s) with the appropriate word(s).