What color develops when ninhydrin reacts with amino acids in a sample?

a. Blue
b. Blue-green
c. Purple
d. Red


a

Biology & Microbiology

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Upon chemical analysis, a particular polypeptide was found to contain 100 amino acids. How many peptide bonds are present in this protein?

A) 101 B) 100 C) 99 D) 98 E) 97

Biology & Microbiology

How can foreign DNA of greater than 300 kbp be inserted and stably maintained in BAC vectors?

What will be an ideal response?

Biology & Microbiology

Which of the following is an inorganic charged

particle found in soil?

a. humus b. clay c. sand d. silt e. all of these are charged inorganic soil particles

Biology & Microbiology

________ is a floating, surface microbial community that drifts with the currents and waves.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology