Which type of RNA is unique to eukaryotes?
mRNA
rRNA
tRNA
snRNA
Its a trick, all cells have all four types of RNA.
1 points
QUESTION 2
The region of DNA to which RNA polymerase binds to initiate transcription is the:
origin
promoter
enhancer
none of the above are correct
1 points
QUESTION 3
Holoenzyme:
is RNA polymerase core enzyme.
is sigma factor.
is core plus sigma factor.
none of the above are correct.
1 points
QUESTION 4
Which of these is formed FIRST when RNA polymerase binds to a promoter?
The closed promoter complex
The open promoter complex
A rho-independent terminator
none of the above are correct.
1 points
QUESTION 5
A hairpin loop followed by a run of Us:
is the sequence formed in the sense strand of a gene using a rho-independent terminator.
is the sequence recognized by the rho protein.
is the structure formed in RNA that causes rho-independent termination.
is formed immediately after the open promoter complex is formed.
1 points
QUESTION 6
RNA polymerase:
reads the template strand of the DNA in the 3' to 5' direction.
synthesizes the RNA in the 5' to 3' direction.
can begin transcription without a primer.
all of the above are correct.
1 points
QUESTION 7
Which of the following statements is FALSE?
Bacteria like E. coli have only one type of sigma factor.
RNA polymerase has no proofreading activity.
The promoter of a gene is upstream of the RNA-coding region.
Bacterial transcriptional terminators are copied into RNA to cause termination.
1 points
QUESTION 8
If the template strand of a gene has the sequence 5' ATGCGAT 3', then:
the RNA produced will have the sequence 5' AUGCGAU 3'.
the RNA produced will have the sequence 5' UAGCGUA 3'.
the RNA produced will have the sequence 5' AUCGCAU 3'.
None of the above are correct.
1 points
QUESTION 9
The sense strand:
is the lagging strand
is also the template strand.
always goes left to right.
none of the above are correct.
1 points
QUESTION 10
Which of these is transcribed but not translated?
mRNA
tRNA
rRNA
all of the above
tRNA and rRNA are transcribed but not translated.
please help i am a bit confused
Which type of RNA is unique to eukaryotes?
mRNA | ||
rRNA | ||
tRNA | ||
snRNA | ||
Its a trick, all cells have all four types of RNA. |
1 points
QUESTION 2
The region of DNA to which RNA polymerase binds to initiate transcription is the:
origin | ||
promoter | ||
enhancer | ||
none of the above are correct |
1 points
QUESTION 3
Holoenzyme:
is RNA polymerase core enzyme. | ||
is sigma factor. | ||
is core plus sigma factor. | ||
none of the above are correct. |
1 points
QUESTION 4
Which of these is formed FIRST when RNA polymerase binds to a promoter?
The closed promoter complex | ||
The open promoter complex | ||
A rho-independent terminator | ||
none of the above are correct. |
1 points
QUESTION 5
A hairpin loop followed by a run of Us:
is the sequence formed in the sense strand of a gene using a rho-independent terminator. | ||
is the sequence recognized by the rho protein. | ||
is the structure formed in RNA that causes rho-independent termination. | ||
is formed immediately after the open promoter complex is formed. |
1 points
QUESTION 6
RNA polymerase:
reads the template strand of the DNA in the 3' to 5' direction. | ||
synthesizes the RNA in the 5' to 3' direction. | ||
can begin transcription without a primer. | ||
all of the above are correct. |
1 points
QUESTION 7
Which of the following statements is FALSE?
Bacteria like E. coli have only one type of sigma factor. | ||
RNA polymerase has no proofreading activity. | ||
The promoter of a gene is upstream of the RNA-coding region. | ||
Bacterial transcriptional terminators are copied into RNA to cause termination. |
1 points
QUESTION 8
If the template strand of a gene has the sequence 5' ATGCGAT 3', then:
the RNA produced will have the sequence 5' AUGCGAU 3'. | ||
the RNA produced will have the sequence 5' UAGCGUA 3'. | ||
the RNA produced will have the sequence 5' AUCGCAU 3'. | ||
None of the above are correct. |
1 points
QUESTION 9
The sense strand:
is the lagging strand | ||
is also the template strand. | ||
always goes left to right. | ||
none of the above are correct. |
1 points
QUESTION 10
Which of these is transcribed but not translated?
mRNA | ||
tRNA | ||
rRNA | ||
all of the above | ||
tRNA and rRNA are transcribed but not translated. |
please help i am a bit confused