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.
If there is a gene that makes humans not want to offend one another, Hanania seems to have been born without it. Gilad Edelman, The Atlantic, 19 July 2026 By Anthropic’s own account, the same models that can predict how a gene-therapy virus behaves could, in the wrong hands, help design a dangerous disease. Jesse Rothman, Boston Herald, 17 July 2026 In another study conducted around the same time, Picard found that perturbing mitochondria changed their host cell’s gene expression and growth, even when the organelles’ ability to transform energy was unchanged. Rachel Nuwer, Quanta Magazine, 17 July 2026 Deploying ultrasound to guide genes into certain tissues is an old idea — researchers have explored using it to deliver chemotherapy into tumors — but it is generally seen as not powerful enough to do this kind of work. O. Rose Broderick, STAT, 17 July 2026 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 21 Jul. 2026.

Kids Definition

: 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

: 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

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