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Biology, 29.07.2019 06:30 wildfire771003

Dna isolated from water samples collected in six different sites was prepared and anaylized by gel eletrophoresis for the presense of carp. the resulting gel is shown. lane 1 through 6 contain the dna from each site. lane 7 and 8 represent the negative and positive controls. based on the bending patterns, how many sites tested positive for carp?

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