Solved 12) You and your research partner Sam have been

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12) You and your research partner Sam have been working to understand how treatment with PFAS affects plant growth. You treated your seeds with water (control sample) or with PFAS. You repeated your experiment twice, one week apart, and completed your RNAseq study, and have started analysis. After all kinds of computational magic, you created the PCA plot shown below: a) Briefly, what does this graph tell you about what your biggest source of variance is (or isn’t)?

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