WorksheetsTranscription!
Total questions: 16
Worksheet time: 10mins
Given the template strand, what is the mRNA strand?
5'- GATGAAC -3'
5'- GUUCAUC -3'
5'- CUACUUG -3'
5'- GAACUAC -3'
5'- GTTCATC -3'
In splicing, _________ are removed and __________ are connected.
Introns; exons
Caps; tails
Exons; introns
Sigma factors; nucleotides
Transcription occurs in the _______ of prokaryotes, and in the _________ of eukaryotes.
Cytoplasm ; cytoplasm
Nucleus ; ribosome
Nucleolus ; nucleus
Cytoplasm ; nucleus
Nucleoid ; cytoplasm
What is the central dogma?
DNA --> mRNA --> tRNA --> rRNA
Template strand --> coding strand --> mRNA
Nucleus --> cytoplasm --> ribosome
DNA --> mRNA --> protein
In prokaryotes, the ________ delivers the ____________ to the promotor region of the DNA.
RNA Polymerase; ribosome
sigma factor; RNA Polymerase
Splisosome; sigma factor
Sigma factor; mRNA
Given the coding strand, what is the template strand?
5'- AGCTTA -3'
5'- ATTCGA -3'
5'- UCGAAU -3'
5'- TAAGCT -3'
5'- TCGAAT -3'
What is the function of RNA polymerase?
To recognize the promotor region
To recognize the transcribed region
To synthesize RNA
To hydrolyze RNA
To "read" the coding strand
Which of the following happens during the initiation step of transcription? Select all that apply!
The sigma factor recognizes the promotor
RNA polymerase synthesizes the mRNA strand
RNA polymerase binds to the DNA
Ribonucleotides are added to the mRNA strand
Which of the following are exceptions to the central dogma? Select all that apply!
DNA --> mRNA
DNA --> tRNA
DNA --> rRNA
RNA --> DNA (retroviruses)
Which of the following occurs during the elongation phase of transcription? Select all that apply!
RNA polymerase unwinds the DNA, forming an open complex
RNA polymerase base pairs nucleotides to the coding strand
RNA polymerase base pairs nucleotides to the template strand
The sigma factor "reads" the coding strand, fixing mistakes
The sigma factor dissociates
Which of the following is complementary and antiparallel to the template strand? Select all that apply!
The non-coding strand
The coding strand
The polypeptide
The tRNA
The mRNA
Which of the following happens during the termination step of transcription? Select all that apply!
Sigma factor dissociates
RNA polymerase dissociates
mRNA modification occurs
RNA polymerase reaches the terminator
A hairpin loop forms in the mRNA
Ture or false: The terminator is transcribed by RNA Polymerase.
True
False
The protein and RNA complex that removes introns and connects exons is called the _______.
Sigma factor
Open complex
RNA polymerase
Spliceosome
Cap and tail
Which of the following are benefits of capping and tailing? Select all that apply!
Prevents degradation of the mRNA
Helps the mRNA exit the nucleus
Helps the mRNA exit the ribosome
Removes introns and connects exons
Helps the mRNA bind to a ribosome
The cap goes on the ________ end of the mRNA, and the poly-A tail goes on the ______ end.
Hairpin ; open
5' ; 3'
3' ; 5'
Open ; hairpin
