Popular media choices for maintaining stock cultures include:
A)TSA deeps.
B)cornmeal.
C)Sabouraud dextrose.
D)CTA with glucose.

Question

Quizplus · Accepted Answer

TSA deeps is the only choice that is sugar-free.For best results, a stock culture should be grown in a large volume of broth, then divided among enough small freezer vials to last a year.Media selection for freezing is at the discretion of the individual laboratory, but it should not contain sugars.If organisms use sugars while being maintained, acid by-products could kill the organism over time.CTA, Sabouraud dextrose, and cornmeal all have sugar.

Popular Media Choices for Maintaining Stock Cultures Include