The phrase "a common variation" is correct and usable in written English.
It can be used when discussing different forms or versions of something that are frequently encountered or recognized.
Example: "In linguistics, 'color' and 'colour' are a common variation in spelling between American and British English."
Alternatives: "a frequent variation" or "a typical variation".
A common variation of the bildungsroman is the Künstlerroman, a novel dealing with the formative years of an artist.
With this approach, a large consortium of breast cancer scientists, led by Douglas F. Easton of the Cancer Research UK Genetic Epidemiology Unit in Cambridge, England, says it has found five new sites on the genome where a common variation confers a risk of breast cancer.
Mild ales weaker, darker, and sweeter than bitter are a common variation; more colour is obtained by special malts, roasted barley, or caramels, less hops are used, and cane sugar is added to impart sweetness and aid maturation.
A common variation to this pattern that investors should be aware of is the cup and handle pattern.
For example, a common variation of the catechol-O-methyltransferase (COMT) gene, which chemically breaks down dopamine, is associated with a slightly higher risk for schizophrenia.
They pinpointed a common variation in the gene called MTNR1B, which codes for one of the body's two known melatonin receptors.
In Martin's case this resulted in a hypospadias – a relatively common variation, where the urethral opening develops somewhere other than the tip of the penis.
They found that those with the variant that blunts BDNF production after exercise — a fairly common variation, existing in about 30 percent of people of European Caucasian heritage — did not improve their memories, even if they exercised regularly.
Indeed for a GWAS of common variation, this may be appropriate for a single trait, but the authors should account for testing nearly 10K transcripts.
GWASs are designed to provide a survey of common variation [minor allele frequency (MAF) > 0.05], therefore examining only a portion of the genomic landscape of complex traits.
Factor analysis is used to assess underlying patterns of variation and the derived factor score is a measure of common variation.
