Transcription Quiz
What is the purpose of the 5' cap?
To tell the ribosome to begin translation.
To protect the mRNA from being digested and to tell the ribosome to begin translation.
To protect the mRNA from being digested.
None of the above.
What is the coding strand? What is the template strand?
The coding strand is used to code for the production of the mRNA and the template strand is unused.
The coding strand codes for the mRNA while the template strand is the unused strand.
The coding strand codes for the mRNA while the template strand helps determine the quality and nature of the mRNA.
The coding strand is the strand that is not transcribed into mRNA while the template strand is transcribed into mRNA.
What are the three stages of transcription?
Initiation, Production, Final Modifications
Initiation, Termination, Final Modifications
Elongation, Termination, Final Modifications
Initiation, Elongation, Termination
What are some differences and similarities between DNA and RNA?
DNA and RNA are both double stranded molecules but with different nitrogenous bases.
DNA and RNA both have the same nitrogenous bases but DNA is double stranded while RNA is single stranded.
DNA and RNA share three of the same bases, DNA is double stranded while RNA is single stranded, and they each are made up of a different sugar.
DNA and RNA are both completely identical in structure, the difference lies in the function.
What is removed, the introns or the exons?
Introns, the non coding regions are removed.
Exons, the non coding regions are removed.
They are both removed from the mRNA.
Both are crucial to the mRNA and the protein that it codes for, therefore they are not removed.
What bases does the promoter contain?
Thymine and uracil bases.
Adenine and uracil bases.
Guanine and cytosine bases.
Adenine and thymine bases.
What is the purpose of the poly-A-tail?
To tell the ribosome to initiate translation.
To protect the mRNA from degeneration.
To protect the mRNA and to act as a prompt to start translation.
To help the mRNA to navigate the cytoplasm.
In what direction does this process occur in?
It varies, depending on the location of the promoter.
5' to 3' direction.
3' to 5' direction.
It does not matter, it can occur in either direction.
What is the central dogma of molecular biology?
RNA codes for proteins.
Proteins codes for the production of DNA which in turn, produces more proteins.
DNA codes for the production of proteins.
DNA codes for proteins, but RNA carries the instructions to a protein building complex, the ribosome.
Why is no proofreading done?
Due to the large scale production of mRNA and the redundancy found in the code.
Proofreading is done by DNA polymerase I.
Due to the redundancy found in the genetic code.
Due to the large scale production of mRNA.