Question

when do you prefer selective breeding​

Answer 1

✴HOLA MATE✴

ANSWER⤵⤵

For selective breeding to be effective, there must be genetic variation present in the population, a way of identifying individuals for selection that are likely to transmit the desired properties to the descendants, and sufficient spare reproductive capacity so that the population can be bred from only the chosen individuals. For most traits there is considerable variation at the observed or phenotypic level, thus providing plenty of selective opportunity. Indeed, selection has utilized both extreme mutant forms that have arisen or been identified, such as coat color in livestock or dwarfing genes in wheat, and quantitative genetic variation contributed by many unidentified loci. Most traits have a sufficiently high heritability, i.e., proportion of the variation that is genetic (formally additive genetic), for artificial selection to be effective.

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Answer 2

Explanation:

Breeders select two parents that have beneficial phenotypic traits to reproduce, yielding offspring with those desired traits. Selective breeding can be used to produce tastier fruits and vegetables, crops with greater resistance to pests, and larger animals that can be used for meat.