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<p>Getting a bunch of As in lower-division classes after you finish your bachelor’s degree won’t exactly do much to convince gradcoms that you’re ready for graduate work… so, no. It’s not like you just list your GPA on a sheet - you’re required to submit transcripts from every institution attended. Gradcoms will easily see that your GPA has been inflated.</p>
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<p>Relevant work experience will help. So will distance from your modest academic performance - the longer the track record of quality work/research you have between graduation and application, the less weight applied to GPA.</p>