الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Phenotypic switching parameters introuduced by C.neoformans strains such as : capsule size change ; colony
morphology and cell form were studied in a preliminary trial to understand the dynamics of phenotypic switching
and microevolution of C. neoformans . The effect of
certain volatile oils on the capsule size of C. neoformans was determined and these oils were used to produce three phenotypes.