The phrase "and has duplicated" is correct and usable in written English.
It can be used when describing an action that has been completed in the past and has relevance to the present, often in contexts involving replication or copying.
Example: "The software has been updated and has duplicated the previous version's features."
Alternatives: "and has replicated" or "and has copied".
Allher previous images were straight photographs, but to heighten the drama in this series she began adding electronically generated background colors and patterns, and has duplicated some of the figures.
Because upland cotton is an allotetraploid and has duplicated copies of genes in homoeologous regions of the A- and D-subgenomes, approximately 35,000 genes were predicted in each subgenome.
The best-studied CT family in this respect is SPANX, which is present as a single-copy gene in rodents and has duplicated and acquired new sub-families in the primate lineage, including at least one (SPANX-C) found to be specific to humans on the basis of its genomic position [ 27].
Through sequence analysis we have shown that the Lhx transcription factor family was already established, and had duplicated and diversified, in the last common metazoan ancestor.
If the wikiHow article is new and has duplicates on other websites, it was almost certainly not taken from us.
Interestingly, vertebrate evolution has favored a particular paradigm, the classical cadherin, which has duplicated and reduplicated from a single vertebrate ancestor [5] to form a 26-member family.
In D. rerio and G. gallus this domain has duplicated twice, resulting in the 6 total FN type III domains.
aurantiacus genome has duplicated genes and aerobic/anaerobic enzyme pairs in (photosynthetic) electron transport chain, central carbon metabolism, and biosynthesis of tetrapyrroles and nucleic acids.
"No one has duplicated this," he said.
Class IIb HDACs (HDAC6 and HDAC10) have duplicated catalytic domains, albeit the duplication is partial in the case of HDAC10.
Second, Tex19 and Sectm1 have duplicated in Sciurognathi and Bovidae while they have been maintained as single copy genes in all further placental mammals.
