Definition: Metamerically is a concept in evolutionary biology that describes how an organism's genes are inherited from its parents. Metamerism occurs when a gene is passed down to one of its offspring by a process called "metaplasia." In other words, a gene is only passed down if it is present in the same cell type or organ as the parent cell. This allows for genetic diversity within an organism, making it more adaptable and capable of surviving environmental changes.
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