extranuclear DNA


extranuclear DNA
   DNA located in organelles such as mitochondria and plastids. This material is also referred to as cytoplasmic DNA and its inheritance as maternal or cytoplasmic since the organelles are transmitted only from the female via gamete cytoplasm.

Forensic science glossary. . 2012.

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  • Extranuclear inheritance — is the transmission of genes that occur outside the nucleus. It is found in most eukaryotes and is commonly known to occur in cytoplasmic organelles such as mitochondria and chloroplasts or from cellular parasites like viruses or bacteria… …   Wikipedia

  • Extrachromosomal DNA — (sometimes called extranuclear DNA or nonchromosomal DNA) is DNA located or maintained in a cell apart from the chromosomes.In many cases, extrachromosomal DNA is contained in cytoplasmic organelles, such as mitochondria (animals), and in… …   Wikipedia

  • Mitochondrial DNA — (mtDNA) is the DNA of the mitochondrion, a structure situated in the cytoplasm of the cell rather than in the nucleus (where all the other chromosomes are located). All mtDNA is inherited from the mother. There are 2 to 10 copies of the mtDNA… …   Medical dictionary

  • mitochondrial DNA — noun Date: 1964 an extranuclear double stranded DNA found exclusively in mitochondria that in most eukaryotes is a circular molecule and is maternally inherited abbreviation mtDNA …   New Collegiate Dictionary

  • mitochondrial DNA — noun : an extranuclear double stranded DNA found exclusively in mitochondria that in most eukaryotes is a circular molecule and is maternally inherited abbreviation mtDNA …   Useful english dictionary

  • heredity — /heuh red i tee/, n., pl. heredities. Biol. 1. the transmission of genetic characters from parents to offspring: it is dependent upon the segregation and recombination of genes during meiosis and fertilization and results in the genesis of a new… …   Universalium

  • kinetoplast — An intensely staining rod , disc , or spherical shaped extranuclear DNA structure found in parasitic flagellates (family Trypanosomatidae) near the base of the flagellum, posterior to the blepharoplast, and often at right angles to the …   Medical dictionary

  • Non-Mendelian inheritance — Mirabilis jalapa Carl …   Wikipedia

  • Cell nucleus — HeLa cells stained for the cell nucleus DNA with the Blue Hoechst dye. The central and rightmost cell are in interphase, thus their entire nuclei are labeled. On the left, a cell is going through mitosis and its DNA has condensed ready for… …   Wikipedia

  • Dominant-rezessiv — Die Vererbung ist in der Biologie die direkte Übertragung der Eigenschaften von Lebewesen auf ihre Nachkommen, soweit die Informationen zur Ausprägung dieser Eigenschaften genetisch festgelegt sind. Die Übertragung von Fähigkeiten und Kenntnissen …   Deutsch Wikipedia


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