You isolate a cellular structure and determine that it is composed of ?-tubulin and ?-tubulin. Based on this evidence,
you correctly identify this structure as a(n):
a. structural MAP.
b. microfilament.
c. microtubule.
d. actin filament.
e. myosin filament
c
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When growing plants in culture, indoleacetic acid (IAA) is used to stimulate cell enlargement. Which plant growth regulator has to be added next to stimulate cell division?
A) ethylene B) indoleacetic acid C) gibberellin D) cytokinin E) abscisic acid
Genes are found in the same order for large stretches of the X chromosome in the rat and mouse genomes, indicating
A. occurence of aneuploidy. B. formation of pseudogenes. C. conservation of synteny. D. conservation of neoteny. 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 synteny? 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?
Beatrice Mintz and others microinjected DNA into a fertilized mouse egg that after reaching maturity could be transmitted to the mouse's offspring. What is the general term used to describe an organism that incorporates foreign DNA?
What will be an ideal response?
Which wavelengths of light are most likely to be absorbed by chlorophyll a?
A. UV B. blue C. red D. infrared