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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.
The Y chromosome (for males) is less protective against hereditary diseases than the X chromosome. Why then are women considered the weaker sex?
which part of human body purify the blood
Explain the role of solutions? Solutions: A solution consists of a liquid solvent plus substances dissolved in it, called solutes. Solutes may be ions, atoms, or small molec
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PENIS - Intromittent organ. Erectile, its apex is penis glanse. Covered by prepuce (part of skin). Main function is insemination (To transfer sperms in vagina in deep).
what are the theories of animal classification
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How different are pteridophytes from bryophytes regarding substance transport? Pteridophytes are tracheophyte (vascular) plants, i.e., they have tissues specialized in conduct
Q. What is a population? In the Biology a population is a set of individuals of the same species living in a given place and in a given time.
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