Ch.17 - Gene ExpressionWorksheetSee all chapters
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Ch.17 - Gene Expression
Ch.18 - Regulation of Expression
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Sections
Gene Expression and the Genetic Code
Transcription
RNA Processing
Translation
Mutation

Solution: During transcription of DNA to RNA:A. the RNA polymerase moves along the DNA in the 5' to the 3' direction.B. the 3' end of the RNA molecule is produced first. C. an RNA polymerase must first bind to

Problem

During transcription of DNA to RNA:

A. the RNA polymerase moves along the DNA in the 5' to the 3' direction.

B. the 3' end of the RNA molecule is produced first. 

C. an RNA polymerase must first bind to a promoter sequence.

D. transcription is always initiated at a "start codon"

Solution

The transcription process, just like the replication process, is limited to the synthesis along the 5' to 3' direction. And since the RNA strand is synthesized through the antiparallel nature of complementary bases, the transcription process proceeds in the 3' to 5' direction of the DNA template.

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