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  2. Extrachromosomal DNA - Wikipedia

    en.wikipedia.org/wiki/Extrachromosomal_DNA

    Mitochondrial DNA is a main source of this extrachromosomal DNA in eukaryotes. [5] The fact that this organelle contains its own DNA supports the hypothesis that mitochondria originated as bacterial cells engulfed by ancestral eukaryotic cells. [6] Extrachromosomal DNA is often used in research into replication because it is easy to identify ...

  3. Extrachromosomal rDNA circle - Wikipedia

    en.wikipedia.org/wiki/Extrachromosomal_rDNA_circle

    Circular extrachromosomal DNA are not only found in yeast but other eukaryotic organisms. [15] [16] A regulated formation of eccDNA in preblastua Xenopus embryos has been developed. The population of circular rDNA is decreased in embryos, indicative of the circular rDNA migrating to linear DNA, as was shown in their analysis on 2D gel ...

  4. Extrachromosomal circular DNA - Wikipedia

    en.wikipedia.org/wiki/Extrachromosomal_circular_DNA

    Extrachromosomal circular DNA (eccDNA) is a type of double-stranded circular DNA structure that was first discovered in 1964 by Alix Bassel and Yasuo Hotta. [1] In contrast to previously identified circular DNA structures (e.g., bacterial plasmids, mitochondrial DNA, circular bacterial chromosomes, or chloroplast DNA), eccDNA are circular DNA found in the eukaryotic nuclei of plant and animal ...

  5. Plasmid - Wikipedia

    en.wikipedia.org/wiki/Plasmid

    A plasmid is a small, extrachromosomal DNA molecule within a cell that is physically separated from chromosomal DNA and can replicate independently. They are most commonly found as small circular, double-stranded DNA molecules in bacteria; however, plasmids are sometimes present in archaea and eukaryotic organisms.

  6. MicroDNA - Wikipedia

    en.wikipedia.org/wiki/MicroDNA

    CpG-islands characteristic in microDNA compared to a single C-G bp. [1] MicroDNA is the most abundant subtype of Extrachromosomal Circular DNA (eccDNA) in humans, typically ranging from 200-400 base pairs in length and enriched in non-repetitive genomic sequences with a high density of exons.

  7. Son Who Held Parents' Alleged Murderer at Gunpoint ... - AOL

    www.aol.com/son-held-parent-alleged-murderer...

    A son who held his parent's alleged murderer at gunpoint is opening up about his final moments with his mother and father. T.D. Gribble recalled how he embraced his mom Paula, 76, and kissed the ...

  8. Britney Spears shares new pics of son Jayden, 18, after ... - AOL

    www.aol.com/britney-spears-shares-pics-son...

    Spears shares Jayden and her 19-year-old son, Sean Preston Federline, with her ex-husband, Kevin Federline.The pair finalized their divorce in 2007 after nearly three years of marriage.

  9. Double minute - Wikipedia

    en.wikipedia.org/wiki/Double_minute

    Double minutes (DMs) are small fragments of extrachromosomal DNA, which have been observed in a large number of human tumors including breast, lung, ovary, colon, and most notably, neuroblastoma. They are a manifestation of gene amplification as a result of chromothripsis , [ 1 ] during the development of tumors, which give the cells selective ...

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