How does genetic variation contribute to selective breeding?

Prepare for the VCE Biology Test. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Genetic variation is fundamental to the process of selective breeding because it provides the raw material for breeders to select from when aiming to enhance specific traits in a population. When genetic diversity exists, it means there are different versions of genes (alleles) present, which can lead to a range of traits among individuals. This diversity allows breeders to choose individuals that exhibit preferred characteristics, such as better yield, disease resistance, or improved aesthetics. As breeders mate individuals with desirable traits over multiple generations, the frequency of these traits can increase within the population, leading to enhancements and improvements in the overall qualities of the organisms. This process ultimately allows for the continued evolution and refinement of species, making it possible to develop new and improved varieties or breeds.

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