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<p>gel assays, and chromosomal manipulation.<br/>
# Allendorf et al. studied the enzyme activity of the same species of red pine seeds collected from two different tree stands in Minnesota. The two groups of trees were treated as one population because no deviations from expected genotype frequencies were observed, as would be expected if the populations were diverging from one another. Many different loci were tested for enzyme activity using a specific gel electrophoresis technique. Alleles that produced an enzyme lacking catalytic activity were</p><p>
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