Nucleotides have a phosphate group attached at the ___ carbon atom of the sugar.
A. 2'
B. 3'
C. 5'
D. 1'
C. 5'
Biology & Microbiology
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Which of the following protein tags allows for affinity chromatography using Ni2+ as the ligand?
A. glutathione-S-transferase (GST) B. His tag C. maltose-binding protein D. ?-galactosidase E. protein A
Biology & Microbiology
The linear order of amino acids in a polypeptide is the ________ structure of a protein.
A) primary B) secondary C) tertiary D) quaternary
Biology & Microbiology
The ____ is a flaplike structure that helps prevent food from entering the windpipe
a. uvula b. pharynx c. larynx d. epiglottis e. esophagus
Biology & Microbiology
A useful diagnostic measure for imperfect multicollinearity is the:
A. likelihood ratio test. B. variance inflation factor. C. t-test. D. z-score.
Biology & Microbiology