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phenotype |
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phenotype (fē`nətīp'): see genetics genome, or characteristic set of genes, that contains the total genetic information for an individual organism. In many familiar organisms two genes for each trait are present in each individual, and these paired genes, both governing the same trait, are called alleles. ..... Click the link for more information. . phenotypeAll the observable characteristics of an organism, such as shape, size, colour, and behaviour, that result from the interaction of its genotype (total genetic makeup) with the environment. The phenotype may change throughout the life of an individual because of environmental changes and the changes associated with aging. Different environments can influence the development of inherited traits (e.g., size is affected by available food supply) and can alter expression by similar genotypes (e.g., twins brought up in dissimilar families may mature differently). Furthermore, not all inherited possibilities in the genotype are expressed in the phenotype, because some are the result of inactive, recessive, or inhibited genes. See also variation. phenotype the physical and biochemical characteristics of an organism as determined by the interaction of its genetic constitution and the environment phenotype [′fē·nə‚tīp] (genetics) The observable characters of an organism, dependent upon genotype and environment. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| We noted a marked increase in healthcare-associated (HA) methicillin-resistant Staphylococcus aureus (MRSA) infections caused by isolates phenotypically consistent with community-associated (CA)-MRSA strains. Few would contest that she can be both phenotypically "white" and "racially mixed"; rather, what Hite and Tate disagree about--on the basis of a single image--is whether or not she is immediately identifiable as such. However, before embarking on the development of a phenotypically anchored database of signature gene expression, we must ask the following question: Does toxicogenomics have any advantage over histopathology in the assessment and characterization of pathological change? |
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