The genes which are highly conserved in all the strains include 16S and 23S Ribosomal RNAs.
There are four distinct types of DNA nucleotides because there are four naturally occurring nitrogenous bases: adenine (A), thymine (T), guanine (G), and cytosine (C).
Incredible fidelity is displayed in DNA expression. For instance, the gene and protein for cytochrome c (cyt c) are highly conserved, indicating that cyt c hasn't changed much over the course of evolution.
It is simple to identify highly conserved regions by employing a colour scheme that tints each nucleotide in a different colour. One or two single nucleotide polymorphisms or the so-called wobble bases, the third base of each three-nucleotide codon, are frequently the only genetic differences between species (SNPs)
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