Semi Permanent Amplification,Phenomena,Protein Synthesis,Gene Magnification

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	Semi Permanent Amplification - If amplification of specific portions of plant genomes increases rates of growth and of protein synthesis, the permanence of these situations over longer periods of time could be of importance in altering developmental behavior. Processes such as gene compensation and magnification have been reported in plants.
Gene compensation refers to developmental increment in multiplicity of genes in one chromosome in the presence of deletion in its homologue. Gene magnification refers to the increase in rRNA cistrons which can be inherited. Although both these phenomena seem to provide an answer to artificially altered genetic situations, they nevertheless represent well studied instances of semipermanent gene amplification. But the various experiments carried out so far do not fully elucidate semipermanent amplification; the biochemical nature of amplified portions has yet to be established.