The phrase "a duplication of an" is correct and usable in written English.
It can be used when referring to the act of making a copy or replica of something, often in contexts related to data, documents, or processes.
Example: "The report revealed a duplication of an earlier version, which caused confusion among the team."
Alternatives: "a copy of" or "a replica of".
A plausible model posits that TATase arose from a duplication of an ancestral AATase-like enzyme.
This finding suggests that the homologous region may have resulted from a duplication of an ancestral gene and that the two genes evolved further by recruitment of exons from other genes, which provided the specific functional domains of the LDL receptor and the EGF precursor.
The HLA-C gene originated from a duplication of an ancestral HLA-B-like gene, which took place in an ancestor of humans and great ape species approximately 12 million years ago.
Therefore, it is possible that a duplication of an ancestral AChE gene accompanied the wide-spread gene duplication event that coincided with the emergence of the jawed fish, with the atypical and typical BChEs of bony fish and other derived vertebrates descendents of this gene.
Sequence homology suggests the sufD gene derives from a duplication of an ancestral sufB sequence.
A duplication of an mtDNA region including the atp9 open reading frame was observed in P. subalpina.
In Ciona intestinalis, we have obtained evidence suggesting a duplication of a large portion of genomic DNA resulting in duplicated genes on two different chromosomes (Table 1, Figure S1).
In spite of a large number of governing equations, the model has a quite simple mathematical structure: it is a duplication of a single visco-elastic model.
The import is that in root-first proof search, no rules need be applied that would produce a duplication of a formula in a premiss.
When comparative analyses of the P. cantorii complete mitochondrial genome sequences were conducted, we discovered a duplication of a segment of the control region in the mitochondrial genome of P. cantorii.
These features are consistent with the notion that retinal bipolar cells arose as some kind of a duplication event: perhaps as a duplication or a migration of a subset of photoreceptors, or perhaps as a duplication of a more primitive ciliated sensory cell.
