19) in mammalian cell culture which of the following are necessary to maintain a) nutrient media b) growth factors c) temperature d) solid substrate to attack to e) all of these f) none of these
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19) in mammalian cell culture which of the following are necessary to maintain
a) nutrient media
b) growth factors
c) temperature
d) solid substrate to attack to
e) all of these
f) none of these
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- What is the purpose of CIT?For a bacterial exotoxin with a typical A-B type toxin structure, removal of the A portion of the toxin would result in which of the following? The B portion remaining would still be able to bind to the target cell, but would not have toxic effects The remaining B portion would enter the cell and carry out its toxic activity, such as ADP-ribosylation The remaining B portion would cause inhibition of protein synthesis Nothing would happen because the A portion is responsible for binding to the target cell. The remaining B portion would still induce cell lysis Please answer asap and in short and content should not be palgarised pleaseIf coliform bacteria are native to human colons, why the big concern over coliform contamination?
- What is the difference between an endotoxin and an exotoxin?If you isolate a bacteria from the digestive system system of mouse, what would you expect the bacterial response to varying pH to be? What would you likely classify this bacteria as?What is the process by which bacteria convert nitrogen gas in the air to ammonia ?