A skin cell and a muscle cell taken from a single mouse differ in appearance and metabolism. If you were to examine the DNA in these two cells, how would they compare?
A) The DNA sequences are arranged in different orders in the two cells.
B) DNA sequences differ in various parts of the genomes of the two cells.
C) The cells contain the same DNA sequences but have different promoters and enhancers.
D) The same DNA sequences are present but different regions of chromatin are modified.
Correct Answer:
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