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Question
State the difference between the structural genes in a Transcription Unit of Prokaryotes and Eukaryotes.
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Solution 1
In prokaryotes, the structural genes are polycistronic and continuous, whereas in eukaryotes, the structural genes are monocistronic and split.
In prokaryotes, there is a single DNA-dependent RNA polymerase which synthesises all the types of RNAs (mRNA, tRNA and rRNA), whereas eukaryotes have three RNA polymerases − Pol I, Pol II, and Pol III − to synthesise different types of RNAs.
Solution 2
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