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Define Disadvantages of Using the Plate Counts Method?
1. It takes time, usually 24 hours or more is required to obtain visible colonies.
2. Microbial count obtained depends upon the culture media used for plate counts.
3. It is not a very useful method for actinomycetes and moulds because in plate counts, it is the asexual spores, which are counted.
4. More glassware is needed.
5. Errors in result may arise due to errors in dilution or plating.
6. Results are expressed as counts forming unit per ml (CFU/ml) rather than as number of microbes. It is so because many microbes are present in chains and clusters and it is difficult to be absolutely certain that each colony has arisen from a single cell. A colony might be produced from a short segment of a chain or from a bacterial clump.
list of the structures you would expect to find in the dermis.
How does a population differ from a community? A population having of all members of a single species that live in an area, while a community consists of all organisms of any s
Explain Lamivudine It is probably the best tolerated of the NRTIs and can be taken once or twice daily. An increase in viral load during treatment with a lamivudine-containing
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Explain Procedure for Preparation of Bacterial Smear? Now carry out the exercise using the steps enumerated herewith: 1. Collect swab samples from the suitable sampling site
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What would occur to the successive trophic levels in the pyramid of energy if the rate of reproduction of phytoplankton was slowed down? Suggest two factors, which could cause l
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