The following drawing represents simultaneous transcription and translation in E. coli. Answer the questions below the drawing. The arrow gives the direction of the RNA polymerase. (a) Is the letter A nearer the 5' or the 3' end of the molecule? (b) Is the letter B nearer the 5' or the 3' end of the molecule? (c) Is the letter C nearer the 5' or the 3' end of the tRNA molecule? (d) What is the "S" value for the large rRNA that is closest to the letter D? (e) Which terminus (N or C) of the growing polypeptide chain is nearer to the letter E? x₂ x Direction of RNA polymerase E ribosome polypeptide chains amino acid B large subunit of ribosome
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.
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