Describe the roles about the name Gene.
By vkg2009
@vkg2009 (33)
India
August 20, 2009 1:43am CST
A gene is the basic unit of heredity in a living organism . All living things depend upon genes . Genes hold the information to build and maintain their cells and pass genetic traits to offspring . A modern working definition of a gene is " a locatable region of genomic sequence , corresponding to a unit of inheritance , which is associated with regulatory regions , transcribed regions and or other functional sequence regions . A gene is the basic instruction i.e. sequence of DNA , In cells , a gene is a portion of DNA that contains both " coding " sequences that determine what the gene does and " non-coding ' sequences that determine when the gene is active ( expressed ). When a gene is active , the coding and non-coding sequences are copied in a process called transcription , producing an RNA copy of the gene's information . This piece of RNA can then direct the synthesis of proteins via the genetic code . The molecules resulting from gene expression , whether RNA or protein , are known as gene products , and are responsible for the development and functioning of all living organisms .
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