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#Question id: 361
#XL - S Microbiology
Calculate the percentage of histidine that has its imidazole side chain protonated at pH 7.3. The pKa values for histidine are pK1 = 1.8, pK2 (imidazole) = 6.0, and pK3 = 9.2.
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#Question id: 18529
#XL - R Botany
Cotton fibres are made up of
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#Question id: 34080
#XL - S Microbiology
Which of the following are characteristics of the roll-tube method?
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#Question id: 2121
#XL - S Microbiology
Which of the following membrane activities requires energy from ATP hydrolysis?
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#Question id: 19497
#XL - P Chemistry
Isotopes of an element have ————–