Phenotype
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In genetics, the phenotype is the set of observable characteristics or traits of an organism. The term covers all traits of an organism other than its genome, however transitory: the organism's morpho
The shells of individuals within the bivalve mollusk species Donax variabilis show diverse coloration and patterning in their phenotypes.
ABO blood groups determined through a Punnett square and displaying phenotypes and genotypes
Exploring relationships among phenotype, genotype and environment at different levels
Biston betularia morpha typica, the standard light-colored peppered moth
Genetics
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Genetics is the study of genes, genetic variation, and heredity in organisms. It is an important branch in biology because heredity is vital to organisms' evolution. Gregor Mendel, a Moravian Augustin
Phenotype
…In genetics, the phenotype (from Ancient Greek φαίνω (phaínō) 'to appear, show' and τύπος (túpos) 'mark, type') is the set of observable characteristics or traits…
Portrait of Imre Festetics, the first geneticist and ethologist. His concepts of selection and evolution were later formulated in Charles Darwin's theory of evolution.
Morgan's observation of sex-linked inheritance of a mutation causing white eyes in Drosophila led him to the hypothesis that genes are located upon chromosomes.
Walther Flemming's 1882 diagram of eukaryotic cell division. Chromosomes are copied, condensed, and organized. Then, as the cell divides, chromosome copies separate into the daughter cells.
Siamese cats have a temperature-sensitive pigment-production mutation.