The ability of the deinococci to resist radiation is due in part to an unusual ability to repair chromosome damage, even fragmentation.
Answer the following statement true (T) or false (F)
True
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What properties are attributable to phenolics?
_____ antioxidants in red wine. _____ the sweetness of honey. _____ the flavor of vanilla. _____ the absorption of ultraviolet radiation. _____ the flavor of chilies.
You decide to do an experiment with isolated myofibrils to explore the effects of ATP hydrolysis on myofibril function. You do this by bathing the myofibrils in a solution that contains a modified form of ATP, which cannot be split into ADP and Pi. At what step will myofibril function be arrested by using this compound instead of unmodified ATP?
A. Myosin heads will be unable to bind to the actin filaments. B. There will be no block in the cycle, since ATP hydrolysis is not required for this process. C. The myosin heads will remain attached to the actin filaments after the power stroke. D. Myosin heads will bind to the actin filaments, but the power stroke will not occur and actin filaments will not slide over the myosin filaments. E. Myosin molecules will be unable to assemble into thick filaments. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you know about the role of ATP hydrolysis in myofibril function? 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? 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?
his4 trp1; his4 trp1; HIS4 TRP1; HIS4 TRP
A haploid yeast strain has mating type a and genotype his4 TRP1. A different haploid yeast strain has mating type ? and genotype HIS4 trp1. The two strains mate and produce diploid offspring with genotype his4 TRP1 / HIS4 trp1. The diploid cells undergo meiosis to produce a variety of tetrad types. In the following questions, the genotypes of the spores in a tetrad are shown. For each tetrad, tell what type it is: parental (PD), non-parental (NPD), or tetratype (T). A) PD B) NPD C) T D) cannot be determined
What type of sensory receptors create the
action potential that we ultimately perceive as sound?
a. chemoreceptors b. mechanoreceptors c. proprioreceptors d. photoreceptors e. more than one of these