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gene loss

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gene loss [′jēn ‚lȯs]
(genetics)
Gene elimination from differentiating cells in some protozoans, insects, and crustaceans.


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Of special note are 2 chapters that are often missing in traditional medical microbiology books: 1 describes how long-term experimental evolutionary studies in the laboratory can contribute to our understanding of microbial pathogen evolution in the environment and clinics, and the other describes how gene inactivation and gene loss can be creative forces during the evolution of many microorganisms, especially obligate intracellular pathogens.
We think that gene loss is still the simplest explanation," says Michael Stanhope of Glaxo-SmithKline in Collegeville, Pa.
Similar evidence of substantial gene loss in worms and flies had already emerged from comparisons of their genomes with those of several yeast species, he adds.
 
 
 
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