Selection Markers
Selection markers are genetic elements that can be used to identify specified organisms. They are selected because they are known to be highly stable and can be used to detect gene expression in the target organism. The most common selection markers used are antibiotic resistance genes, which allow an organism to survive in the presence of a specific antibiotic. Selection markers can be used in biotechnology to identify desired phenotypes of transgenic organisms and to develop 'marker-assisted selection.' This technique has been used to improve crop yields, to study gene regulation, and to identify disease-related genes.
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