10 Questions
What replaces deoxyribose in RNA?
Ribose
Which nitrogenous base replaces thymine in RNA?
Uracil
Which class of cellular RNAs functions during gene expression?
mRNAs
What is the enzyme that directs RNA synthesis during transcription?
RNA Polymerase
What is the function of the sigma factor in RNA transcription?
Recognition of the promoter region
What are the two consensus sequences found in E. coli promoters?
TTGACA and TATAAT
Which RNA polymerase is responsible for the transcription of a wide range of genes in eukaryotes?
RNA Pol II
What type of sequences influence the efficiency of transcription initiation by RNAP II?
Proximal-promoter elements
What is the role of enhancers and silencers in eukaryotic transcription?
Enhancers increase transcription levels; silencers decrease them
Which post-transcriptional modification involves the removal of introns and joining of exons?
Splicing
Test your knowledge on RNA structure and function in genetics with this quiz focusing on major classes of RNA, RNA transcription in prokaryotic and eukaryotic cells, and the concepts of central dogma. This quiz covers concepts from Chapter 10 of genetics.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
