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Explain the Centrifuge - Microbiological Apparatus and Equipments?
Centrifuge is used for separating the substance in liquid or concentrating the microorganisms on the basis of size or mass under centrifugal force (noted as rpm). Depending upon the speed limit, centrifuges may be:
(a) Low Speed (Maximum Speed 5000 rpm)
(b) High Speed (18000 rpm)
(c) Ultra Centrifuges (20000 to 60000 rpm)
The centrifuge consists of a head or rotor (of various sizes), which hold the tubes containing the material to be separated. The rotor is revolved by an upright motor. After completion of centrifugation, particulate matter settles down at the bottom of tubes and can be separated.
Is it possible that an X chromosome of a woman can have come from her father? It is not only possible that an X chromosome of a woman is from her father, it is certain. Every w
characteristic of spider that makes it the phylum arthropoda?
Mutations are the only kind of variability generating mechanism in prokaryotes and asexually reproducing organisms. But in eukaryotes where sexual recombination occurs, even in one
Protein Protein: The requirement of protein is increased in typhoid, as there is a massive tissue loss. Thus, the protein intake should be increased above the normal of lg/
What are the types of plant geotropisms? Why do the stem and the root present opposite geotropisms? The parts of geotropisms are the positive geotropism, that in which the plan
Q. What do you understand by Chromosome Behaviour? When we study meiosis. we not only observe the regularity of pairing which is important' for' the fertility of the plants, we
On a separate piece of paper, draw a simple family tree for a couple showing children (F1), and lineages from two children showing grand children (G2), great grandchildren (G3), gr
The method of recombination or crossing-over Which of the following is a false statement regarding the method of recombination or crossing-over? A. Crossing-over takes place
Explain the salient features biochemical origin of life.
Megasporogenesis One of the nucellar cells situated subjacent to the epidermis differentiates into the primary archesporial cell. This cell is larger than the adjacent ce
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