Exemplification serves as a crucial rhetorical strategy in academic writing, yet its functional realisations across disciplines remain underexplored. This study addresses this gap by investigating how exemplification operates differently in biology and applied linguistics research articles. Analyzing a corpus of 200 published articles through a local grammar framework, the study reveals significant disciplinary distinctions in both frequency and functional deployment of exemplification patterns. The analysis shows that applied linguistics articles employ exemplification more extensively, often integrating it with authorial voice, certain forms of citation, and contextualized argumentation. In contrast, biology articles demonstrate a more limited usage of this discourse act, reflecting their higher reliance on persuasion through direct and objective presentation of data. Both disciplines, however, share certain core exemplification structures, suggesting underlying commonalities in academic discourse. The findings offer new insights into how disciplinary writing conventions influence rhetorical strategies, with significant implications for academic writing instruction and genre-informed pedagogy. This research advances our understanding of exemplification as a significant and context-sensitive discourse act whose use is shaped by disciplinary epistemologies and informed by disciplinary preferences.
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