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Explain the Microscope?
Microscope is a powerful and crucial basic tool in the field of microbiology. Microbiology, as we have already studied in our theory Course, is the science dealing with the organisms too small to be seen with unaided eye. The existence of microbial life to the world was introduced first by Antony Van Leeuwenhoek in 1673, with the help of simple, crude, self-made, single-lens microscope having a magnification of about 300.
Over the years, microscopes have evolved to increase the magnification several thousand fold. Modern day microscopes are either light microscopes or electron microscopes. Light microscopes use either visible light or ultraviolet rays to illuminate specimens. These are generally used to look at intact cells. On the other hand, electron microscopes use electron beams instead of light rays and electromagnets instead of lenses. These are generally used to look at internal structures or details of cell surface.
Explain Metabolic changes during infection With the rise in body temperature above normal (98.4 0 F or 37°C) due to infection several metabolic changes occur in the body
Xerarch - Ecology Successions initiated on bare rock, wind-blown sand, rocky talus slopes, or other situations where there is an extreme deficiency of water are termed xerarch
Q.Explain Chemical changes due to spoilage A food item may have apparently looked safe and wholesome for you to eat, but the rumbling and grumbling in your stomach at night may
A pure phospholipid bilayer with its hydrophobic interior, is permeable to water and gases such as O2, CO2, N2 and small uncharged polar molecules such as urea, ethanol, bu
Determine the Occurrence of Vitamin E The tocopherols are widely found in animal and vegetable materials, like nuts and seeds. Considerable amounts are found in a number of
What are multiple alleles? Is there dominance in multiple alleles? Multiple alleles is the phenomenon in which the similar gene has more than two dissimilar alleles (in normal
Why are transgenics considered a threat to the environmental safety? Transgenics can be dangerous to the entire biosphere as the transfer of genes among species may have immed
A wild-type strain of haploid yeast is crossed to a mutant haploid strain to make a diploid. What phenotypic ratios will be observed in the haploid progeny of the diploid?
Define Transcription Phase of Gene Expression Process? Transcription is the enzyme synthesis of RNA on a DNA template. This is the first stage in the overall process of gene ex
Jennifer has the "stomach flu" that is going around campus and has been vomiting profusely for the past 24 hours. Not only has she been unable to keep down fluids or food but she h
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