DNA variant

[/ˌdiː ɛn ˈeɪ ˈvɛəriənt/]
nounpl: DNA variants
variante de DNA
1. A difference in the DNA sequence at a specific location in the genome compared to a reference sequence, which may or may not affect phenotype or function
The DNA variant was found to increase susceptibility to type 2 diabetes.
A variante de DNA foi encontrada para aumentar a suscetibilidade ao diabetes tipo 2.
2. A genetic mutation or polymorphism that occurs naturally in a population and may be associated with disease susceptibility, drug response, or other traits
Researchers identified a novel DNA variant linked to increased cardiovascular risk.
Os pesquisadores identificaram uma variante de DNA novel associada ao aumento do risco cardiovascular.
3. In genomics, any deviation from the canonical or wild-type DNA sequence at a locus
This DNA variant occurs in approximately 15% of the European population.
Esta variante de DNA ocorre em aproximadamente 15% da população europeia.
DNA variant is a technical term primarily used in medical, genetic, and genomic research contexts in both Brazil and the United States. In Brazil, this terminology has become increasingly common with the expansion of personalized medicine and genetic counseling services. The term is neutral and scientific, often used in clinical reports, research publications, and genetic testing results. The concept has grown in cultural importance in recent years due to increased awareness of precision medicine and direct-to-consumer genetic testing.
Synonyms / Sinônimos
genetic variantDNA polymorphismgenetic mutationsequence variantSNP (single nucleotide polymorphism)allelic variant
Antonyms / Antônimos
reference sequencewild-type sequencecanonical sequence

Regional Variations

General Brazilian Portuguese
variante de DNA
Standard term used in medical and scientific contexts in Brazil
São Paulo
variante genética
Sometimes used interchangeably; more common in clinical genetics settings
Portugal
variante de DNA / variante genética
Both terms are used; scientific terminology is largely uniform across Portuguese-speaking countries
Rio de Janeiro
variante de DNA
Standard usage in research institutions and medical centers

Related Words

genomegenotypeallelemutationpolymorphismgenomicssequencingpathogenic variant

Related Idioms & Phrases

carry a DNA variant
harbor a DNA variant
pathogenic DNA variant
benign DNA variant
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