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Q. Under which form is nitrogen fixed by living beings?
The Most living beings can't use molecular nitrogen to obtain nitrogen atoms. The Producers fix nitrogen primarily from nitrate (NO3-). A few plants also fix nitrogen from ammonia. The decomposers and Consumers acquire nitrogen through digestion of mainly proteins and nucleic acids from the body of other living beings.
Why acquired traits are not directly related to the process of evolution? As acquired traits are not genetically determined, they cannot be passed on to offspring. Therefore,
Swine-pox Pigs of 2 months of age may be infected with vaccinia either naturally or artificially and show pox lesions on the eyelids, snot, inside the thigh and undersurface of th
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In an experiment, it was necessary that you determine the concentration of dsDNA by using a spectrophotometer. You used 6 microliters of your purified dsDNA, and the reading at OD=
Protein X has an absorptivity of 0.4 mL . mg -1 . cm-1 at 280nm. What is the ab sorbance at 280 nm of a 2.0 mg. mL-1 solutionof protein X ? (Assume the light path is 1 cm).
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