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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.
Total number of unpaired electrons in an atom of atomic number 29 is: (1) 1 (2) 3 (3) 4 (4) 2 Ans: 1
The color in KMnO4 arises from an electronic transition, but it is actually not a d-d ... When the light is reflected (or transmitted) it is missing the frequencies of the light ab
There are thirty (30) electrons in benzene. This contains 24 carbon electrons and 6 hydrogen electrons. There are 12 electrons shared among C and H, and 18 among C and C. (6 electr
Acetic Acid or Ethanoic Acid Acetic acid is the oldest termed as fatty acid. It is the major constituent of vinegar and therefore its name (Latin acetum = vinegar)
Uses of Benzaldehyde - Aldehydes and Ketones Benzaldehyde is used, (a) In perfumery (d) In manufacture of dyes (c) In preparation of benzoic acid, cinnamic acid, cinna
what is allyl componund
Cycloalkene - Hydrocarbon Carbocyclic compounds along with double bonds in the ring are known as cycloalkenes. Few common cycloalkenes are Cycloalkenes can be simply ac
Chemical Properties of Aromatic Nitro Compounds - Electrophilic substitution Because - NO 2 group is deactivating and m-directing, electrophilic substitution (halogenation, ni
Uncertainty in position of a 0.25 g particle is 10 -5 . Uncertainty of velocity ( h = 6.6 x 10 -34 Js) is: (1) 1.2 x 10 34 (2) 2.1 x 10 -29 (3) 1.6 x 1
Q. Define Conjugate acid-base pair and buffer? Buffers are substances that resist changes in pH. To "balance pH" means to buffer. Weak acids and bases make good buffers.
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