Out of the following what usually supports the fastest growth rate and is therefore considered the preferred nitrogen source for E. coli

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#Question id: 946

#XL - Q Biochemistry

Aspartate is the precursor for which of the following amino acids?

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#Question id: 9269

#XL - R Botany

The distribution of electrons in the excited molecule is somewhat different from the distribution in the groundstate molecule, Absorption of blue light excites the chlorophyll to a higher energy state than absorption of red light because

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#Question id: 3662

#XL - S Microbiology

______________ refers change to the DNA that affects expression of a gene but is not inherited.

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#Question id: 3901

#XL - Q Biochemistry

Francois Jacob and Jacques Monod are responsible for

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#Question id: 1704

#XL - Q Biochemistry

The single best unique description of the interaction of the αβ T-cell receptor with peptide-MHC is that it: