mitochondrial DNA

(redirected from Mdna)
Also found in: Dictionary, Acronyms, Wikipedia.
Related to Mdna: Mitochondrial DNA

mitochondrial DNA (mtDNA),

species of DNA present in mitochondria, where it participates in energy metabolism, rather than in the nucleus.
Farlex Partner Medical Dictionary © Farlex 2012

mitochondrial DNA

n. Abbr. mtDNA
DNA that is contained in the mitochondria of eukaryotic cells and is inherited maternally.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

mitochondrial DNA

A small circular DNA molecule of which all MITOCHONDRIA in cells have several copies. It contains 16,569 base pairs and 37 genes. Being present in the cytoplasm of the cell, is transmitted exclusively by the mother. A mature ovum contains about 100,000 copies of mitochondrial DNA; sperms contain none. The genome has been completely sequenced. Its main function is to code for enzymes needed by the mitochondrion. The sites of common mutations, especially deletions, are known as are a number of diseases caused by these defects in the mitochondrial DNA. See MITOCHONDRIAL DNA DISEASES.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

mitochondrial DNA (mtDNA)

the DNA GENOME in the MITOCHONDRION that codes for a number of the organelle's functions. The genome is replicated and transcribed by a separate set of ENZYMES from those of the eukaryotic cell NUCLEUS. In METAZOANS the mtDNA is generally circular, and there appear to be no INTRONS. The GENETIC CODE shows differences from the universal code.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
In these figures, traces labeled (1) represents the fluorescence spectra of the dye in gcDNA, mDNA, and at DNA at a dye to DNA-phosphate ratio of 1:50 (8nM dye and 400 nM DNA-phosphate) in buffer only (absence of protein).
PMT is MDNA's second Mitomic test for prostate cancer with market-leading assay performance, the first being a post-biopsy tissue-based test.
As a result, the donor egg is left with nuclear DNA from the mother and mDNA from the donor.
Tracks from new album MDNA figured highly on the setlist, but it was her 80s classics that really raised the roof.
Madonna MDNA With younger divas such as Lady Gaga hot on her heels, Madonna has to step up her game if she is to continue her reign as the biggest selling female artist in the UK.
You may have seen electro-hop duo LMFAO rocking with MDNA in the Super Bowl halftime show.
Two days before Madonna took the stage for the Super Bowl halftime show, Madonna launched a video for her lead single Give Me All Your Luvin' from her latest angle MDNA.
At 53, the Queen of Pop put her throne beyond doubt yesterday when her new album MDNA went to Number One in FORTY-THREE countries on pre-orders alone.
In a jam-packed week, Madonna also releases the debut single "Give Me All Your Luvin'" from her highly anticipated forthcoming album MDNA this Friday, February 3.
Area of Specialization: Food, Beverage, Pharmaceutical, Cosmetic, Chemical, Etc Certifications/Credentials: USPAP, CEA, ASA, MDNA, AMEA Website: State or Country: IL Category: Listing #:56942 (B) [To receive the contact name for this listing, reference the five-digit number which follows each listing and e-mail to FirstList,
Messe Dusseldorf North America, Plastindia 2012, 8th International Plastics Exhibition & Conference, Pragati Maidan Exhibition Center, New Delhi, India, MDNA (312) 781-5180; 1-6.
The North American Pavilion at Newcast 2009 will be organized by Messe Dusseldorf North America (MDNA), the U.S.