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It has been recently determined that the gene is more than 2000 bp in length; however, the mRNA produced by this gene is only about 150 kb long. What is a likely cause of this difference in the number of nucleotides in the gene compared to the mRNA for the gene?
A. The exons have been spliced out during mRNA processing.
B. The DNA represents a double-stranded structure, whereas the RNA is single-stranded.
C. More amino acids are coded for by the DNA than by the mRNA.
D. The introns have been spliced out during mRNA processing.
E. When the mRNA is produced, it is highly folded and therefore less long.


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