Which of the following polypeptides (written from their N terminal ends) is encoded by the following mRNA? (hint: there is no left or write in a cell!) 3'GG AUG AGU AUA CUU ACG GGU GAA GUA CAU UAA CCC C 5' OO Met Lys Trp Ala Phe lle Met Ser lle Leu Thr Gly Glu Val His Tyr Lys Arg Thr Phe Tyr Met none of the above His Val Glu Gly Thr Leu lle Ser Met
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 genetic code is a set of instructions that enable live cells to produce proteins using genetic information contained in DNA or RNA sequences of nucleotide triplets, or codons. The ribosome carries out translation by joining proteinogenic amino acids in the order dictated by messenger RNA (mRNA), reading the mRNA three nucleotides at a time, and carrying amino acids. All species share a great deal of genetic similarity, which can be stated in a straightforward table with 64 items.
Which amino acid will be added following another during protein synthesis is determined by the codons. A three-nucleotide codon in a nucleic acid sequence, with rare exceptions, identifies a single amino acid. The vast majority of genes use a single encoding technique (see the RNA codon table). Although there are many codes (such in mitochondria), this pattern is frequently referred to as the canonical, standard, or genetic code.
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