The phrase "a marked differentiation between" is correct and usable in written English.
It can be used when discussing distinct differences or contrasts between two or more subjects or concepts.
Example: "There is a marked differentiation between the two theories, highlighting their unique approaches to the problem."
Alternatives: "a clear distinction between" or "a significant difference between".
This is confirmed by genetic analyses of matrilineal mitochondrial DNA (mtDNA) sequences, which reveal a marked differentiation between modern B. taurus and B. indicus haplotypes, demonstrating their derivation from two geographically- and genetically-divergent wild populations [5].
In our study, a marked differentiation between the Spanish Merino populations from Estremadura and from Andalusia was observed with both the ADMIXTURE and the neighbor-network analyses.
However, a finding that transposable element insertion sites showed marked differentiation between the forms indicated that reproductive isolation might affect a larger portion of the genome (Esnault et al. 2008).
In centric diatoms there is marked differentiation between nonmotile female gametes, which act as egg cells, and motile (typically uniflagellate) male gametes.
These studies contrast with the results obtained in the direct developer Acanthina monodon that exhibits marked differentiation between northern and southern Pacific Patagonia localities [ 39].
Inhibition of miRNA-193b-365 in BAT SVF results in a marked reduction of BAT differentiation.
The emergence of one of several additional physical symptoms marked the differentiation between a resolvable lactation difficulty and an actual health problem which requires professional attention.
This marks an important differentiation between the results of this study and previous studies [2], [17], [19], [26] and this difference is particular noteworthy as a number of studies have especially foccused on the motor and visual system during rest and reported two separate networks [1], [6], [10], [11].
"If she had created [handbags] in leather, there probably would have been more sales," says Quick. "But she stuck to her principles, which became a mark of differentiation.
The changes follow demands from ministers to toughen up a marking system they claim has been discredited by years of grade inflation, and calls for greater differentiation among higher achievers.
