The screening is isolation and detection of microorganisms of interest.

Which of the following shows the zone of inhibition when a particular organism is grown on a Petri plate?

The prototrophs are the organisms which are not capable of synthesizing all growth requirements for themselves.

Which of the following plate is used to detect and isolate organic acid producers?

Which scientists gave the details of the techniques of preservation?

Which of the following is NOT a cryoprotective agent?

The preservation by liquid Nitrogen is called as ___________

“Each batch of newly preserved cultures should be routinely checked to ensure their quality”. Who outlined the statement?

Which of the following is/are used in dried culture preservation?

The cultures grown on agar slopes may be stored in the refrigerator or freezer at 5°C to -20°C.

The cryoprotective agents are used to prevent cell damage.

During the preservation of microbial cell culture ______

Which of the following method of preservation is more suitable and used widely?

Which of the following is not the composition of N-agar plates/ slants?

Which of the following procedure has a great application in strain improvement?

Who isolated a biotin-requiring, Corynebacterium glutamicum?

Which of the following secondary metabolites does not prevent the synthesis of its own?

Which of the following cannot induce mutations?

Which of the following is a type of mutation?

Which of the following strain is useful for diabetes treatment?

The levels of primary metabolites are regulated by _______