gene

noun

plural genes
: a specific sequence of nucleotides in DNA or RNA that is located usually on a chromosome and that is the functional unit of inheritance controlling the transmission and expression of one or more traits by specifying the structure of a particular polypeptide and especially a protein or controlling the function of other genetic material

Examples of gene in a Sentence

She inherited a good set of genes from her parents.
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.
The scientists removed a gene that controls the production of thyroxine, a hormone that regulates the amphibians’ metamorphosis. Sara Hashemi, Smithsonian Magazine, 14 Apr. 2025 Scientists can edit the genes of the pig to reduce the risk that a human body will reject its organ. Deidre McPhillips, CNN Money, 11 Apr. 2025 What game was it based on? 11 of 11 Scientists bred animals that carry genes of what species that went extinct 13,000 years ago? New York Times, 11 Apr. 2025 Co-infection gives the two flu viruses a chance to swap genes, potentially creating a bird flu virus that spreads as easily as the seasonal variety. Amy Maxmen | Kff Health News, ABC News, 10 Apr. 2025 See All Example Sentences for gene

Word History

Etymology

German Gen, short for Pangen, from pan- + -gen

First Known Use

1909, in the meaning defined above

Time Traveler
The first known use of gene was in 1909

Cite this Entry

“Gene.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gene. Accessed 23 Apr. 2025.

Kids Definition

gene

noun
: a part of DNA or sometimes RNA that is usually located on a chromosome and that contains chemical information needed to make a particular protein (as an enzyme) controlling or influencing an inherited bodily trait or activity (as eye color or metabolism) or that influences or controls the activity of another gene or genes

Medical Definition

gene

noun
: a specific sequence of nucleotides in DNA or RNA that is located usually on a chromosome and that is the functional unit of inheritance controlling the transmission and expression of one or more traits by specifying the structure of a particular polypeptide and especially a protein or controlling the function of other genetic material

called also determinant, determiner, factor

More from Merriam-Webster on gene

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