The phrase "a certain duplication of" is correct and usable in written English.
It can be used when discussing instances of repetition or similarity in various contexts, such as research, analysis, or description.
Example: "In the study, there was a certain duplication of results that raised questions about the validity of the findings."
Alternatives: "some repetition of" or "a degree of overlap in".
The bulk of "Glass Mountain" is comprised of Carlos's special operations, and, though this courts a certain duplication at times, Mr. Koster is good at investing them with clever, usually plausible and unexpected detail.
We flag certain duplication vertices of a gene tree, the "non-apparent duplication" (NAD) vertices, as resulting from the misplacement of leaves.
We found that one in 2,000 individuals have an abnormality – a duplication of certain genes – in their chromosome 16.
So one might say it's almost fitting there's a certain amount of duplication of the Worthy Farm bill: Sunday night headliners the Black Keys were among those high on the Glastonbury bill, as was Friday night's bill-topper, Lily Allen.
Our results agree with a certain degree of duplication in this species.
Most cucumber chromosomes contained two to three partially overlapping syntenic blocks with different LGs of C. pepo, which may suggest a certain level of duplication in this species.
The Conference recognized that there was a certain degree of duplication between the progress report on International Agricultural Adjustment and other FAO documents, e.g. the State of Food and Agriculture, the Progress Report on the WCARRD Programme of Action and reports to the Committee on World Food Security and the Committee on Commodity Problems.
OrthoCluster can identify "perfect segmental duplications"–duplications containing no mismatches, "imperfect segmental duplications"–duplications containing a certain level of mismatches (genetic interruptions), as well as synteny blocks among multiple genomes [ 18].
Such a scenario provides a mapping of the gene tree onto the species tree that implies certain duplication, loss, and transfer events.
