The continuous gradation over space in the form or frequency of a genetic trait is known as a:

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A cline describes the gradual variation of a genetic trait over geographical space. Homozygote refers to an individual having the same allele at a specific gene locus on both homologous chromosomes. A polygene is a set of multiple genes responsible for a complex trait. An adaptive trait is a characteristic that helps an organism survive and reproduce in its environment.

The Continuous Gradation Over Space in the Form or Frequency