BRAINCAKEArtificial Selection
Artificial selection is selective breeding by humans for desired characteristics. Usually genetic polymorphism exists for different characteristics i.e. each characteristic has distinctly different phenotypes. Farmers, breeders and horticulturalists breed plants and animals by interbreeding individuals with desired characteristics and selecting from the offspring and interbreeding the offspring over many generations.
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Key terms in this lesson
- allele
- One of two or more alternative versions of a gene, occupying the same locus on homologous chromosomes.
More in Genetics and Variation
- Epistasis
- The Hardy-Weinberg Principle
- Changes in Allele Frequencies
- Population Bottlenecks and The Founder Effect
- Types of Selection
- Species
- Allopatric Speciation
- Sympatric Speciation
All 36 lessons in Genetics and Variation · All AQA A-level Biology topics