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10 Questions

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Transcription of DNA and Types of RNA

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Questions and Answers

Which enzyme recognizes the promoter region with the help of transcription factors?

RNA polymerase IV

RNA polymerase II (correct)

RNA polymerase I

RNA polymerase III

What is the specific sequence that serves as a termination signal during mRNA elongation?

CCAAT

GGATCC

ATTTAA

AAUAAA (correct)

What is the purpose of adding a 7 methyl GTP cap at the 5' end of the primary transcript?

Enhancement of transcription

Formation of the polyadenine tail

Protection from exonucleases (correct)

Initiation of translation

What is the function of polyadenylation in mRNA processing?

Protection from exonucleases Signup and view all the answers

What is the role of splicing in mRNA processing?

Removal of introns Signup and view all the answers

What is the primary function of RNA polymerase III?

Transcribes tRNA and some small nuclear RNA Signup and view all the answers

Which enzyme reads the template DNA strand in the 3' to 5' direction during transcription?

DNA polymerase Signup and view all the answers

What is the sense or coding strand of DNA known for?

It has the same sequence as the transcribed RNA except for the change of U for T Signup and view all the answers

Which type of RNA carries amino acids and forms the ribosomes?

(tRNA) Signup and view all the answers

What is the main function of the promoter region in DNA during transcription?

Initiates RNA synthesis at specific sites Signup and view all the answers