Refer to the Figure

question 74

Essay

Refer to the figure. The figure shows a map of a linear fragment of DNA that can be digested with two restriction enzymes, A and B.The letter (a) represents the location where enzyme A cuts, and the letter (b) represents the location where enzyme B cuts.The numbers are the distances between restriction sites in kilobases (1 kilobase = 1,000 bp).Draw the results of gel electrophoresis, with Lane A representing DNA cut with just enzyme A, Lane B representing DNA cut with just enzyme B, and Lane C representing DNA cut with both enzymes.Lane D should contain reference DNA fragments of 1, 2, 4, 10, and 20 kilobases.Show the direction of the electric current.

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Definitions:

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