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Base (hóa học) Base64 Basel Basel II Base nitơ Basenji Basetsana Kumalo Basedth BaseN Basel ITài liệu tham khảo
WikiPedia: Base nitơ https://www.dictionary.com/browse/nitrogen-base https://www.medicinenet.com/script/main/art.asp?ar... https://www.rxlist.com/nitrogenous_base/definition... https://biologydictionary.net/nitrogenous-base/ https://health.ccm.net/faq/2615-nucleobase-definit... https://web.archive.org/web/20060621234655/http://... https://www.khanacademy.org/science/biology/gene-e...