Question Detail
Question
What is required to maintain the viability of stored microorganism on agar slant?
Correct Answer
Option C is the correct answer.
Detailed Explanation
Agar slant cultures require periodic subculturing onto fresh medium at regular intervals (usually every few months) to replenish nutrients and prevent desiccation, thereby maintaining viability.
Hint
Consider the limited lifespan of nutrients and moisture in a sealed agar slant.