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Mutation:
A mutation is a physical or chemical change which changes the sequence of bases in DNA molecule. Anything which causes mutation is known as mutagen. A mutation consequences from ultraviolet light, ionisation radiations, viruses/chemicals. The alterations in sequence of bases in DNA are repaired by unique enzymes in the cell. There is a condition that if it is not, the protein generated has no biological activity and the cell dies.
These mutations frequently prove harmful and give rise to symptoms which cause diseases. Sickle-cell anaemia is one such instance. Such type of disease is passed on from one generation to the next generation.
Name the principal ore of tin or lead. Describe the different steps (along with equationsfor the reactions) involved in the extraction of the metal from the ore named. Name
Energy of electron of hydrogen atom in second Bohr orbit is: (1)-5.44x10 -19 j (2)- 5.44x10 -19 kj (3)-5.44x10 -19 cal
When an electron drops from a higher energy level to a low energy level, then: (1) Atomic number decreases (2) Energy is absorbed (3) Atomic number increases (4) Energ
Solid xenon forms crystals with a face centered unit cell that has an edge of 620 pm. 1. calculate the atomic radius of xenon. 2. calculate the packing efficiency if xenon. So
classify the reaction.Na2CO3(s) + SiO2(s) ? Na2SiO3(l) + CO2(g)
i just need to know if anyone that might know of a website that has the answer key to the book chemistry Prentice Hall Brief Review 2013
From the point of view of "green chemistry" - why should reactions be carried out in CO 2 instead of using carbon monoxide or phosgene (2 reasons)? Apart from the compression of c
Solubility in liquid ammonia short notes
unit of ell constant .
characteristics of group 13 elements
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