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Epigenetic Trait
Transgenerational epigenetic inheritance is the transmission of epigenetic markers from one organism to the next (i.e., from parent to child) that affects the traits of offspring without altering the nucleic acid primary structure, primary structure of DNA (i.e. the sequence of nucleotides) —in other words, epigenetics, epigenetically. The less precise term "epigenetic inheritance" may cover both cell–cell and organism–organism information transfer. Although these two levels of epigenetic inheritance are equivalent in unicellular organisms, they may have distinct mechanisms and evolutionary distinctions in multicellular organisms. Environmental factors can induce the epigenetic marks (epigenetic tags) for some epigenetically influenced traits, while some marks are heritable, thus leading some to consider that with epigenetics, modern biology no longer rejects the Lamarckism, inheritance of acquired characteristics (Lamarckism) as strongly as it once did. Epigenetic categories ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cloned Mice With Different DNA Methylation
Cloning is the process of producing individual organisms with identical or virtually identical DNA, either by natural or artificial means. In nature, some organisms produce clones through asexual reproduction. In the field of biotechnology, cloning is the process of creating cloned organisms (copies) of cells and of DNA fragments (molecular cloning). Etymology Coined by Herbert J. Webber, the term clone derives from the Ancient Greek word (), ''twig'', which is the process whereby a new plant is created from a twig. In botany, the term ''lusus'' was used. In horticulture, the spelling ''clon'' was used until the early twentieth century; the final ''e'' came into use to indicate the vowel is a "long o" instead of a "short o". Since the term entered the popular lexicon in a more general context, the spelling ''clone'' has been used exclusively. Natural cloning Cloning is a natural form of reproduction that has allowed life forms to spread for hundreds of millions of years. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
