Egypt's geological history has produced four major physical regions: the Nile Valley and Delta, the Western Desert (also known as the Libyan Desert), the Eastern Desert (also known as the Arabian Desert), and the Sinai Peninsula.
Abbreviation: Ks values. A synonymous mutation is a change in the DNA sequence that codes for amino acids in a protein sequence, but does not change the encoded amino acid. Due to the redundancy of the genetic code (multiple codons code for the same amino acid), these changes usually occur in the third position of a codon.
These DNA mutations are called synonymous mutations. Others can change the gene that is expressed and the phenotype of the individual. Mutations that do change the amino acid, and usually the protein, are called nonsynonymous mutations. Synonymous Mutations. Synonymous mutations are point mutations, meaning they are just a miscopied DNA nucleotide that only changes one base pair in the RNA copy of the DNA. A codon in RNA is a set of three nucleotides that encode a specific amino acid.