The phrase "a pattern of differentiation" is correct and usable in written English.
It can be used in contexts discussing variations, distinctions, or classifications within a particular subject or field.
Example: "In biology, a pattern of differentiation can be observed in the development of various species."
Alternatives: "a trend of distinction" or "a model of differentiation".
As America advanced, a pattern of regional differentiation appeared, just as in Europe.
The early history of trilobite evolution shows a pattern of biogeographic differentiation which taken with other evidence suggests that there may have been some significant period of trilobite evolution before they actually appeared in the fossil record.
Significant FST values among subgroups within South America and among Central and South American subgroups (Table 2) also show a pattern of geographic differentiation with most haplotypes unique to a single area, particularly in South America, and only a few haplotypes with broad distributions.
The species boundaries described for Telopea[ 7] follow a pattern of latitudinal differentiation along the Great Dividing Range (GDR).
MSCs isolated from various anatomic locations exhibit immune-suppressive properties, follow a pattern of multilineage differentiation, including neuronal transdifferentiation [ 29, 30].
Gene flow between selectively divergent environments may favour the evolution of phenotypic plasticity or conversely, plasticity itself may promote gene flow, leading to a pattern of trait differentiation in the presence of gene flow.
Geographically-limited selective sweeps occurring anywhere on the linked mtDNA molecule are one possible explanation for a pattern of greater differentiation of mtDNA if the sweep causes polymorphic sites to become fixed within an outcrop for CYTB but does not affect RISP.
BC3H1 is a cell line that undergoes a musclelike pattern of differentiation under the appropriate conditions.
In contrast, primary neurons do not divide in culture, do not show a uniform pattern of differentiation, and have a wide variety of phenotypes.
