5 Questions
During transcription, what is the role of the template strand of DNA?
It serves as the basis for RNA synthesis
What is the function of RNA polymerase during transcription?
It catalyzes the synthesis of RNA from the DNA template strand
What is the composition of an exon in a protein-coding gene?
Protein coding sequence
Which strand of DNA has an identical base sequence to the RNA synthesized during transcription?
Coding strand
What is the general process that occurs after transcription in the expression of most genes?
Translation
Study Notes
Transcription
- The template strand of DNA serves as a blueprint for RNA synthesis, providing the sequence of nucleotides to be copied into RNA.
- RNA polymerase, the central enzyme of transcription, reads the template strand and matches the incoming nucleotides to the base pairing rules, adding them to the growing RNA chain.
Gene Composition
- An exon is a sequence of nucleotides within a protein-coding gene that is retained in the mature RNA and is eventually translated into protein.
RNA Synthesis
- The newly synthesized RNA has a base sequence complementary to the template strand of DNA, but identical to the non-template strand.
Post-Transcriptional Processing
- After transcription, the primary transcript undergoes several processing steps, including splicing, capping, and polyadenylation, to form a mature RNA molecule.
Test your knowledge of transcription with this quiz. Explore the general principles, steps involved, and the components of protein-coding genes. See how much you know about RNA synthesis and transcriptional control elements.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
