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.
Groups that showed greater lifetime risks (between 44 and 59 percent after age 55) were Black adults, women and people who carried the allele e4: this variation of the gene which codes for the protein apolipoprotein E, increases the risk of developing Alzheimer’s disease. Jocelyn Solis-Moreira, Scientific American, 13 Jan. 2025 Between 45 percent and 60 percent of people have versions of the APOE4 gene that could increase the risk of dementia significantly. John Mac Ghlionn, Newsweek, 13 Jan. 2025 Older adults with two copies of the gene had a 59% risk of developing dementia in their older age, compared with 48% of those with one copy and 39% of those with no copies of the gene, the new study found. Deidre McPhillips, CNN, 13 Jan. 2025 Along with the genes, however, Lewis has a competitive spirit and a work ethic that exceeds her peers, training three hours a day in the weight room and on the court. Steve Galluzzo, Los Angeles Times, 12 Jan. 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

Dictionary Entries Near gene

Cite this Entry

“Gene.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gene. Accessed 18 Jan. 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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