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.
A case study of coevolution. Mutations. Mutation is a change in DNA, the hereditary material of life. An organism's DNA affects how it looks, how it behaves, and its physiology â all aspects of its life. So a change in an organism's DNA can cause changes in all aspects of its life. Mutations are random. Mutations can be beneficial, neutral, or harmful for the organism, but mutations do not try to supply what the organism needs.. In this respect, mutations are random â whether a particular mutation happens or not is unrelated to how useful that mutation would be.