DNA replication begins at and ends at O start codon; stop codon O AUG; UAG Promoter; operator Promoter; polyU sequence or stem-loop structure /ori/; /ter/ amino terminus; carboxy terminus
Gene Interactions
When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.
Gene Expression
Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.
The expression of the genetic material occurs generally through the production of proteins, This involves two consecutive steps. These are transcription and translation. ln transcription. the genetic information, stored in DNA, is transferred to an RNA intermediate, which in turn uses this information to direct the synthesis of proteins during translation. This unidirectional flow of information was described by F.H.C. Crick in 1958 as the 'Central dogma' of Molecular Biology.
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