In the E-test, the zone of inhibition is elliptical around the plastic strips impregnated with antibiotics. What information do you get when you know the point at which the bacterial growth touches the strip?
A) You know the concentration of a chemical that bacteria are resistant to.
B) You know the concentration of a chemical that slightly diminishes microbial growth.
C) You know the concentration of a chemical that completely inhibits microbial growth
C) You know the concentration of a chemical that completely inhibits microbial growth
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You created a worm that expresses a human Bcl-2 transgene, and you are crossing the transgene into a homozygous ced-9 mutant background. However, you inadvertantly used a clone of Bcl-2 with a mutation in the BH domain, which is essential for function. What results do you expect for the ced-9 mutants with the mutant Bcl-2 transgene?
A. 131 cells will die. B. All 1090 cells will die. C. All 1090 cells will live. D. 959 cells will die. 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 apoptosis pathway? Consider Possibilities · What other information is related to the question? Which information is most useful? 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 tissue distributes water and dissolved mineral ions through vascular plant bodies?
a. plasmodesmata b. phloem c. xylem d. rhizomes e. meristem
Which event occurred first?
a. evolution of vascular plants b. evolution of modern humans c. oxygen accumulation in the Earth's atmosphere d. evolution of prokaryotes e. evolution of reptiles
This illustration shows that after two half-lives,
__________ percent of the parent radioisotope has decayed. a. 100 b. 75 c. 50 d. 25 e. 0