本题目来源于试卷: Continuity and Change D.2 Protein Synthesis，类别为 IB生物学
[单选题]
Why can a eukaryote produce a largers9 +eg hz7sh8ad3n /wm number of mRNA i. +-xaki ;o*awak et,transcripts than the number of genes in iekkx+ioaa-, * ait w;.ts genome?
A. Some mRNA transcripts are double-stranded.
B. There are genes that produce multiple different mRNA transcripts.
C. Not all mRNA transcripts are produced by genes.
D. Some mRNA transcripts are produced by other mRNA transcripts.
参考答案: B
本题详细解析:
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