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Explain the Scanning Electron Microscope
It can be used to observe intact cells or cell components directly. Then sections are not necessary. It is used for visualizing surface characteristics rather than intracellular structures. A narrow beam of electrons scan back and forth, producing a three-dimensional image as electrons are reflected off the specimen's surface.
Though a variety of optical instruments are available for routine laboratory work, compound bright field microscope is the one commonly found in all biological laboratories. Let us get to know the different parts of this microscope.
Which of the below terms describes study of animal behavior based on comparisons, observation of patterns, and consideration of environmental adaptations? Is it: a) Ethology (p
Explain Astrand Cycle Test? This is a sub maximal test done on cycle ergo meter. In this test, comparatively lower wattages are set. For example, for males less than 35 years o
classification mollusca
Biological diversity is the new buzzword, the magic door to international funding and global travelling. We share the earth with million of other living beings. Just as we humans m
Define Thin Layer Chromatography? This is an improvement over paper chromatography and uses thin layers of slurried absorbents like silica gel, alumina, cellulose, Kieselguhr,
Why does thermal inversion increases air pollution? What harm can thermal inversion cause to humans? Thermal inversion confines at low altitude a layer of pollutants that would
Define about the Growth and development in children? Growth and development in children can be studied under the following heads: . • Changes in physical development and bod
Giemsa stain is a basic stain, thus the major chromagen is positively charged (cation). Why does this stain have an affinity for the bacteria cell wall, and for certain cellular co
TYPES OF DRUG ACTION - 1 . PHARMACODYNAMIC DRUGS - These drugs modify the physiological and biochemical processes in the patient's body to eliminate the disease.
For many of the mammalian Hox genes, it has been possible to determine that some of them are more similar to one of the insect HOM-C genes than to the others. Describe an experimen
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