Genetics

Genetics

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24 June 2009

Genes is an important aspect in the development of living organism . It ensures that information is carried from one generation to another Thus , the aim of this is to define some terms that are used in understanding the role of genes , discussing the double helix structure of DNA and expanding the idea of central dogma in biology

1 . Definition of genetics terms

Replication - Replication is

the process in which the DNA makes a copy of itself before the division of its cells . Replication can be of one of the three types : conservative , semi-conservative and dispersive Conservative replication produce a new DNA , Semi-conservative produce two molecules in which each is composed of half parental DNA while the other is a new complementary strand and the dispersive replication produces a mixture of old and new fragments into forming two new strand of the DNA (Solms , Turnbull Sacks , 218

Expression - Gene expression is the mechanism in which the information of a gene is utilized in synthesizing a functional product e .g . protein it is movement of genetic information from the gene itself to the protein while in non-protein e .g . RNA is tRNA and rRNA genes

Information storage - this is the fundamental aim of the genes . The genes should be able to store information that is used for metabolic activities and control the development of the organism or the cell Moreover...