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Predict Experimental Results
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AP Biology
APB.015 Predict Experimental Results
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A gene promoter becomes heavily methylated in a cell line. The hypothesis is that methylation represses transcription by limiting transcription-factor access to the promoter. Which predicted result follows?
A
mRNA from the methylated gene will increase because methyl groups are extra RNA polymerases.
B
The gene will be removed from the chromosome each time it is methylated.
C
The coding sequence will be translated backward because methylation reverses codon order.
D
mRNA from the methylated gene will decrease without a change in the gene's coding sequence.
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