Biology / Bio 1803 · Atom · ~20 seconds
Molecular Systematics
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Molecular systematics uses DNA and protein sequence comparisons, alongside the DNA universality of Bio 1671, to reconstruct relationships with more precision than morphology.
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Comparing the same gene's sequence across species and counting shared changes can reveal relationships appearance alone would miss or mislead.
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A high sequence-similarity match can sometimes arise by chance rather than ancestry, so molecular and morphological evidence are combined.
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