enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Extrachromosomal DNA - Wikipedia

    en.wikipedia.org/wiki/Extrachromosomal_DNA

    Multiple forms of extrachromosomal DNA exist, and, while some of these serve important biological functions, [1] they can also play a role in diseases such as cancer. [2] [3] [4] In prokaryotes, nonviral extrachromosomal DNA is primarily found in plasmids, whereas, in eukaryotes extrachromosomal DNA is primarily found in organelles. [1]

  3. 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 ...

  4. Plasmid - Wikipedia

    en.wikipedia.org/wiki/Plasmid

    Although most plasmids are double-stranded DNA molecules, some consist of single-stranded DNA, or predominantly double-stranded RNA. RNA plasmids are non-infectious extrachromosomal linear RNA replicons, both encapsidated and unencapsidated, which have been found in fungi and various plants, from algae to land plants. In many cases, however, it ...

  5. Plant genetics - Wikipedia

    en.wikipedia.org/wiki/Plant_genetics

    An image of multiple chromosomes, taken from many cells. Plant genetics is the study of genes, genetic variation, and heredity specifically in plants. [1] [2] It is generally considered a field of biology and botany, but intersects frequently with many other life sciences and is strongly linked with the study of information systems.

  6. Genome - Wikipedia

    en.wikipedia.org/wiki/Genome

    Before this loss, DNA methylation allows the adequate expansion of the genome. [37] In humans, the nuclear genome comprises approximately 3.1 billion nucleotides of DNA, divided into 24 linear molecules, the shortest 45 000 000 nucleotides in length and the longest 248 000 000 nucleotides, each contained in a different chromosome. [52]

  7. 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 ...

  8. Plant genome assembly - Wikipedia

    en.wikipedia.org/wiki/Plant_genome_assembly

    Plant Genome DataBase Japan [18] (PGDBj) is a website that contains information related to genomes of model and crop plants from databases. It has three main components: ortholog db, DNA marker and linkage map db, and plant resource db, where multiple plant resources accumulated by different institutes are integrated.

  9. Extranuclear inheritance - Wikipedia

    en.wikipedia.org/wiki/Extranuclear_inheritance

    Mitochondria with their mitochondrial DNA are already present in the egg cell before it gets fertilized by a sperm. In many cases of fertilization, the head of the sperm enters the egg cell; leaving its middle part, with its mitochondria, behind. The mitochondrial DNA of the sperm often remains outside the zygote and gets excluded from inheritance.