what is Gene?
G ene in the light of present knowledge. So this is the simple definition of gene. Gene as you all know, it is a segment of DNA that codes for a functional protein or functional RNA like tRNA, r RNA or ribozymes that influences phenotype. So this is a simplest definition of gene at present. Now this is a technical definition of gene or exact definition of gene. Gene is a unit of heredity that is located on chromosomes, made up of DNA and regulatory elements, that encodes a functional protein or family of proteins or a functional RNA molecule that influences phenotype. How we reached this definition? As we all know according to Central Dogma of Biology, DNA is transcribed to mRNA, the process of forming RNA from DNA is called as transcription and this information is used to convert this RNA to protein by the protein synthesizing machinery, the ribosome. So according to Central Dogma the information on DNA is t...