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What is Quantitative Techniques?
Microbial quality of substances like food, milk, air, water, soil etc. can be assessed both qualitatively and quantitatively. Quantitative enumeration of microorganisms in a given sample can be accomplished in a laboratory by employing various methods, either by direct or indirect counts, each having its own advantages and disadvantages. No single method is always best. The most appropriate approach will depend on the experimental situation. These methods can also be used to measure microbial growth, determining growth rate and generation time. These methods devised for microbial quantitation either measure the cell numbers or determine the cell mass or cell constituents like DNA, protein, O2 uptake, carbon dioxide production, turbidometric measurement for increase in cell number, membrane filter count and the serial dilution agar plate method etc. Microbial populations are very large, therefore, most of the methods of counting are based on direct or indirect counting of a very small sample, achieved indirectly by a series of dilutions. Calculations then determine the size of total population.
What pathway does dietary iron follow in blood vessels
What is a phenotype? A phenotype is each observable characteristic of a living being conditioned by its genes. Some phenotypes may be changed by nongenetic factors (for instanc
D-glucose differs from D-galactose only in the arrangement around carbon 4. Therefore D-glucose and D-galactose are- Select one: a. enantiomers b. epimers c. mirror ima
The phases of the cardiac cycle are: 1) Atrial Systole This begins with the P-wave of the ECG. The atrio-ventricular valves are open and the ventricles are relaxed (diastole
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write a comprehensive note on vitamins?
1. In the town of Jasper, CA, there is currently one full-time family doctor. If the town's population grows at a steady rate of 14% per year, how many family full-time family doc
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Q. Minerals requirements during congestive cardiac failure? Minerals: Since sodium and potassium are the major electrolytes associated with oedema, it is important that sodium
Concerning the sex chromosomes of the XY system which type of gamete do the male and the female individuals respectively produce? The individual of the male sex is XY so he for
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