POLYGENE Meaning and
Definition
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Polygene is a term used in genetics to describe a trait or characteristic that is influenced by multiple genes located across different chromosomes. It refers to the phenomenon where a particular trait is determined by the combined effects of multiple genes, rather than being controlled by a single gene. These genes may interact with each other and with environmental factors to determine the expression of the trait.
In a polygenic inheritance pattern, several genes contribute toward the development of a particular characteristic, and each gene individually may have a small effect on the phenotype. The combination and interaction of these genes result in a wide range of phenotypic variations within a population.
Polygene inheritance can be observed in various traits and characteristics, such as height, skin color, eye color, intelligence, and susceptibility to certain diseases. Each of these traits is influenced by the action of multiple genes. For example, height may be influenced by dozens of genes that contribute to differences in growth and development.
Understanding the inheritance of polygenic traits involves studying the interactions between multiple genes and their collective impact on the phenotype. This requires analyzing large populations and conducting studies to identify and map the specific genes involved. Polygenic inheritance adds complexity to genetic studies and requires statistical analyses to determine the contribution of each gene and the extent of their interactions in shaping a particular trait.
Common Misspellings for POLYGENE
Etymology of POLYGENE
The word "polygene" is derived from two Greek roots: "poly" meaning "many" and "gene" meaning "origin" or "birth". "Polygene" is a term used in genetics to describe multiple genes that contribute to a single trait or phenotype.
Similar spelling words for POLYGENE
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