Media function testing should be performed on commercially prepared media when:

a. organisms expected to grow on the media demonstrate growth.
b. daily as required.
c. on all new lots of media.
d. only when the identity and growth cha-racteristics appear abnormal.


D
Quality control on commercially manufactured media does not typically require functional testing unless the media is demonstrating unusual growth characteristics or failing to function ap-propriately (i.e. proper color change or growth using quality control organisms).

Biology & Microbiology

You might also like to view...

Outline the series of steps that transfers genetic information from the linear sequence of nucleotides in a DNA molecule into the linear sequence of amino acids in a protein

What will be an ideal response?

Biology & Microbiology

About 80% of plants have mycorrhizae linking them to

A) chytrids. B) glomeromycetes. C) ascomycetes. D) basidiomycetes.

Biology & Microbiology

Resistance factor plasmids are transferred to other bacterial cells during transformation, transduction, and conjugation.

Answer the following statement true (T) or false (F)

Biology & Microbiology

The human immunodeficiency virus mounts a direct attack on TH cells by recognizing the ________ proteins in the plasma membrane of these cells.

A. CD4 B. cytokine receptor C. CD8 D. major histocompatibility class I E. Toll-like receptor

Biology & Microbiology