Look at the image. Describe the DNA fragments towards the top of the gel electrophoresis.
A. larger and they move faster
B. smaller and they move faster
C. larger and they move slower
D. smaller and they move slower
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A gene for disease resistance in fir trees is transferred to pine trees using modern DNA technology. How might this be economically helpful to tree farmers?
A. Abnormal pine tree growth would be eliminated.
B. Erosion of topsoil would no longer be a concern.
C. Pine trees would be safe from pine beetle attacks.
D. More pine trees would live to maturity, increasing lumber output.
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