The phrase "a different copy of" is correct and usable in written English.
You can use it when referring to an alternative version or duplicate of a document, file, or item.
Example: "Please send me a different copy of the report, as the one I received is missing some pages."
Alternatives: "another version of" or "an alternate copy of".
She was also accused of deliberately handing a different copy of the altered statement to an expert so he would find that the alteration was due to a printer malfunction.
This is attributed to the fact that each receive antenna gets a different copy of the same transmitted data.
It is possible that Giraldus had access to a different copy of Asser's work.
In this scenario, fitness associated with increased signal-to-noise ratio of the two diverging WGD-derived co-orthologus ligand-receptor pairs in individuals was selected, similar to the retention of a different copy of duplicated genes in reproductively separated populations [59].
Each mutation needed to be on a different copy of the NPHS2 gene (in trans) to be deemed causative.
In crystal, PTPA binds to PP2Ac associated with mini-A from a different copy of the PTPA-mini-A fusion protein.
Subsequent studies examined four different cervix cancer cell lines, each with a different copy number of the HPV genome.
Moreover, it is possible to inscribe five tetrahedra into a dodecahedron, and each different copy of the tetrahedral group in stabilizes one of these tetrahedra.
Although each of the 4 independent lab-evolution experiments showed the exact same solution (that is, a mutation in the anticodon of a tRNAArgUCU gene), 3 different copies of this gene were changed among the 4 lines (i.e., 1 of the 11 copies of tRNAArgUCU was mutated in 2 repetitions; see 'Materials and methods').
We therefore propose in this paper a filter, called TUIUIU, that: 1. is specifically taylored for multiple repeats, and 2. allows for a bounded edit distance among the different copies of a repeat, that is for deleted or inserted basepairs besides substitutions.
However, most transposons, especially those in teleost fish, undergo vertical inactivation or stochastic loss to produce a large number of different copies of unautonomous transposons that have mutations in their transposase regions (Leaver 2001; Ahn et al. 2008; Wang et al. 2011; Pujolar et al. 2013).
