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Because RNA is composed of four parts of nucleotides, there are 43 = 64 possible codons, which is 64 possible triplets of nucleotides with several sequences. Furthermore, only 20 amino acids are commonly found in proteins so which, in most cases, a one amino acid is coded for through various dissimilar codons described in the figure. The genetic code is thus said to be degenerate. In reality, only methionine and tryptophan are shown by a single codon. As a conclusion of the genetic code's degeneracy, a mutation which changes only a single nucleotide in
Figure: The genetic code.
DNA point mutation, and thus changes only a single nucleotide in the corresponding mRNA, frequently has no effect on the amino acid sequence of the encoded polypeptide.
Neuroglia - Organisation of Nervous System We may refer neuroglia as the connective tissue of the nervous system. It involves all elements of the nervous system other than ne
Q. How does aldosterone act and where is it produced? Aldosterone is a hormone that acts upon the nephron tubules stimulating the resorption of sodium Therefore it contributes
Define role of Vitamin A in controlling gene expression? Vitamin A as retinoic acid has widespread effects on the synthesis of a variety of important proteins. These diverse ef
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Define Essentiality of Phosphorus for Growth of Micro-Organism Phosphorus is used in the form of phosphate salt by microorganisms. It is involved in formation of nucleic acids,
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Microtubule assembly: A) generally originates in the centrosome. B) occurs only during mitosis. C) occurs randomly throughout the cell. D) is regulated by myosin. E) is inhibited d
Temperature - Seed Dormancy Low temperature treatment is an essential prelude to germination in many seeds, and high temperature may be inhibitory at the time of germination.
explain transport system in earth worn
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