CAPE Biology Unit 1 · 2009 · Paper 1 · Question Q18
Why is the copied portion of the DNA longer than that of the functional mRNA molecule produced from it?
- (A)The DNA portion contains many genes.
- (B)The DNA portion contains a promoter region.
- (C)Only exon portions are included in the mRNA.
- (D)Only intron portions are included in the mRNA.
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