In a MALDI-TOF Assay

Multiple Choice

In a MALDI-TOF assay, 

A) antibodies are used to detect specific proteins and polysaccharides, particularly those that make up surface structures.
B) a microorganism's proteins are separated and sorted by mass to generate a profile that provides a fast way to identify a colony.
C) part of a colony is transferred to a microscope slide, and a drop of hydrogen peroxide (H₂O₂) is added to it to test for catalase.
D) specimens are inoculated onto differential media and a set of biochemical tests are used to identify a microorganism.
E) the nucleotide sequence of ribosomal RNA molecules (rRNAs) , or the DNA that encodes them (rDNAs) , is used to identify microbes.