Genotype and Phenotype Encyclopedia Article

Genotype and Phenotype

The following sections of this BookRags Literature Study Guide is offprint from Gale's For Students Series: Presenting Analysis, Context, and Criticism on Commonly Studied Works: Introduction, Author Biography, Plot Summary, Characters, Themes, Style, Historical Context, Critical Overview, Criticism and Critical Essays, Media Adaptations, Topics for Further Study, Compare & Contrast, What Do I Read Next?, For Further Study, and Sources.

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The following sections, if they exist, are offprint from Beacham's Encyclopedia of Popular Fiction: "Social Concerns", "Thematic Overview", "Techniques", "Literary Precedents", "Key Questions", "Related Titles", "Adaptations", "Related Web Sites". (c)1994-2005, by Walton Beacham.

The following sections, if they exist, are offprint from Beacham's Guide to Literature for Young Adults: "About the Author", "Overview", "Setting", "Literary Qualities", "Social Sensitivity", "Topics for Discussion", "Ideas for Reports and Papers". (c)1994-2005, by Walton Beacham.

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Genotype and Phenotype

Genotype is the genetic constitution of an organism and phenotype is the outward manifestation of the genetic constitution. The genotype determines potential characteristics and limitations of the individual organism from embryo to adulthood. For organisms that reproduce sexually, genotype embodies the entire complex of genes inherited from both parents. Genotype can be demonstrated mathematically to show that individual offspring inherit different traits from their parents. Genes for certain traits can be recessive or dominant, which determines the likelihood of their expression as phenotype in a given individual.

Phenotype is the observable features of an organism, such as size, skin or fur color, eye color, etc. Phenotype is determined by the interaction of genotype and the environment. Phenotype can refer to an individual, or to a group of physically similar organisms. Phenotype can change throughout the life of an individual due to environmental changes, and changes due to aging. Different individuals with the same genotype can have different phenotypes if raised in different environments.