A DNA sample has a 260/280 ratio of 2. Which of the following treatments can be used to get a better purity of DNA sample?

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#Question id: 11600

#XL - R Botany

The first plant gibberellin to be identified was___

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#Question id: 2369

#XL - Q Biochemistry

Fermentation, an anaerobic process, produces 2 ATP per glucose molecule whereas aerobic respiration produces approximately _____ ATP.

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#Question id: 31587

#XL - S Microbiology

How many NADPH and ATP molecules are generated per molecule of glucose in the Entner-Doudoroff pathway?

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#Question id: 10889

#XL - R Botany

Which of the following ecosystem that is lower Productivity/Biomass ratios and energy transfer rates to higher trophic levels are slower 

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#Question id: 4587

#XL - S Microbiology

Which one of the following statements best defines artificial selection?