The phrase "a certain locus" is correct and usable in written English.
It can be used in contexts related to geography, mathematics, or discussions about specific locations or points of interest.
Example: "In the study of urban development, a certain locus of activity can be identified in the downtown area."
Alternatives: "a specific location" or "a particular point".
Consider a population consisting at a certain locus of three genotypes: A1A1, A1A2, and A2A2.
A few DNA methylation studies of different human races have been carried out recently, which reveal a distinct pattern of CpG methylation at a certain locus in the autosomal DNA (Table 2).
In brief, since the MLPA dosage quotient ratios of the individuals at a certain locus are distributed according to a mixture of normal distributions, it is possible to assign to each individual a posterior probability of being located within one of the normal distributions that represent each copy number state.
Indeed, peak summits indicate an overrepresentation of a motif in a certain locus.
To reiterate, mutation combines information from multiple loci as it changes a certain locus.
When a candidate gene was within multiple (overlapping) loci, each was counted as a separate prediction for a certain locus.
Due to the inclusion of potential splicing isoforms in the assembly, the longest transcripts for a certain loci were taken as unigenes.
RegulomeDB is a database that combines data from ENCODE and other sources such as ChIP-seq data from the sequence read archive (SAR) (Leinonen et al. 2011) and data on expression quantitative trait loci (eQTL) with computational predictions to estimate the regulatory potential of a certain genomic locus (Boyle et al. 2012).
First, only point mutations changing the allele type at a certain gene locus are being considered in these models.
Since the heterogeneity patterns were heritable through subsequent cloning, they could be the result of specific variation in epigenetic states at a certain genomic locus [ 26].
If for a certain SNP locus one allele is substantially more frequently gained than the other allele, one may hypothesize that the former allele is subject to a larger selective pressure to change copy number.
