Xenobiology
Science of synthetic life forms / From Wikipedia, the free encyclopedia
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Xenobiology (XB) is a subfield of synthetic biology, the study of synthesizing and manipulating biological devices and systems.[1] The name "xenobiology" derives from the Greek word xenos, which means "stranger, alien". Xenobiology is a form of biology that is not (yet) familiar to science and is not found in nature.[2] In practice, it describes novel biological systems and biochemistries that differ from the canonical DNA–RNA-20 amino acid system (see central dogma of molecular biology). For example, instead of DNA or RNA, XB explores nucleic acid analogues, termed xeno nucleic acid (XNA) as information carriers.[3] It also focuses on an expanded genetic code[4] and the incorporation of non-proteinogenic amino acids, or “xeno amino acids” into proteins.[5][6]