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

Examples of mitochondrial DNA in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
It’s inherited from the mother and there is currently no cure for mitochondrial DNA disease. Vanessa Etienne, People.com, 19 July 2025 Armed Forces Medical Examiner System scientists, the agency said, also employed mitochondrial DNA analysis, mitochondrial genome sequencing, and nuclear single-nucleotide polymorphism testing. Frank Witsil, Freep.com, 15 July 2025 The team was able to successfully extract mitochondrial DNA from the dental calculus present in the Harbin fossil. Stephanie Edwards, Discover Magazine, 19 June 2025 Other military agencies used mitochondrial DNA analysis and genome sequencing data to help identify the remains. June 4, CBS News, 4 June 2025 See All Example Sentences for mitochondrial DNA

Word History

First Known Use

1964, in the meaning defined above

Time Traveler
The first known use of mitochondrial DNA was in 1964

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Cite this Entry

“Mitochondrial DNA.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mitochondrial%20DNA. Accessed 27 Jul. 2025.

Medical Definition

mitochondrial DNA

noun
: an extranuclear double-stranded DNA found exclusively in mitochondria that in most eukaryotes is a circular molecule and is maternally inherited

called also mtDNA

Last Updated: - Updated example sentences
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