Noun
mtDNA (countable and uncountable, plural mtDNAs)
(genetics) Abbreviation of mitochondrial DNA.
mtdna (countable and uncountable, plural mtdnas)
Alternative form of mtDNA
Compared to Y-DNA, mtDNA is easier to extract and amplify from ancient specimens due to numerous copies of mtDNA per cell. Source: Internet
For example, an individual might have more than 85% Western European 'genomic' ancestry but still have a West African mtDNA or NRY lineage. Source: Internet
However, the Y-chromosome and mtDNA ( mitochondrial DNA ) testing processes for direct-line male and female ancestors can fail to pick up the heritage of many ancestors. Source: Internet
Initial studies of mtDNA cytochrome b sequence data suggested that the hierofalcons are basal among living falcons. Source: Internet
Cell-level selection may then act to remove those cells with more mutant mtDNA, leading to a stabilisation or reduction in mutant load between generations. Source: Internet
Due to the lack of a system for checking for copying errors, mitochondrial DNA (mtDNA) has a more rapid rate of variation than nuclear DNA. Source: Internet