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Codon Bias. Custom Codon Bias Essay Writing Service || Codon Bias Essay samples, help
The phenomenon of codon bias has been widely studied in the contemporary genetic science field. Since its discovery, scientists have made great strides at making the topic well known especially with regard to the study of microorganisms. This has led to numerous attempts to replicate the process of codon bias in ex-situ settings in order to further develop a synopsis and explanation of the events leading to its emancipation. The study of codon bias is therefore relevant in explaining evolutionary aspects regarding gene structures of organisms, for instance, mutational aspects in genetics explanation.What is Codon Bias?Codon essentially describes a cell mediated process whereby the events leading to the formation of particular amino acid combinations change in terms of specifity during protein formation. This occurs when a particular codon used to code for an amino acid is replaced by a different code, which normally codes for the same amino acid. "The genetic code is degenerate and thus allows different codons to be used to specify the same amino acid" (Balding, Bishop, & Cannings, 2007). This explains the existence of variation in terms of the selection for the respective codons, elementally coding for the amino acid in focus leading to the formation of structurally similar protein structures going by the functional component.Theia is a term which has been used in the contemporary field of astrobiology which usually entails the description of various aspects of the evolutionary perspectives. In essence, it has been borrowed from a mythological aspect and therefore has variations of meanings depending on its contextual description. In reference to mythology, it is a name provided by certain authors as a 'mars-sized object' which after its interaction with the earth through impacting the young earth, led to the moon formation" (Barbier, Gargaud, Martin, & Reisse, 2006).
Do the new genomes exhibit oligonucleotide frequencies?The oligonucleotide frequencies focusing on codons are essentially established after an analysis of the amino acid-coding regions or sites, inclusive of the non-coding sites. The orientation in the two sites relatively determines the expressed frequencies in the long run. "The order of nucleotides is governed not only by the encoded information, but also by physical and biological constraints, with the exception of long-range physical forces on DNA structure, all sections of the genome should be exposed to the same constraints and consequently should have the same fingerprints of oligonucleotide frequencies, i.e. frequencies being consistently either low or high for the same oligonucleotide (Cornelis, 2008). This establishes the fact that the expression of the oligonucleotide frequencies in the newly formed genomes is elementally based upon the identification of different finger print forms of the formed oligonucleotides. Furthermore, "The local G+C content and oligonucleotide frequencies are measures of variability in bacterial genomes (Cornelis, 2008). This fundamentally represents the different occurring structural as exhibited during codon formulation in terms of frequencies in combination. In essence, "Oligonucleotide bias is a signature of a microbial genome and carries a phylogenetic signal" (Cornellis, 2008). This provides meaningful evidence in a bid to establish the occurring codon frequencies emanating from the genomes.Do the phage sequence biases match those of their presumed bacterial hosts?
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Codon Bias. Custom Codon Bias Essay Writing Service || Codon Bias Essay samples, help
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