Gene Expression I: Transcription And Related Stuff
16 Questions
| Attempts: 287
The molecular biology of transcription.
Questions and Answers
- 1.RNA polymerase's job is:
- A.
9-5
- B.
Part time
- C.
Weekends only
- D.
Second shift
- E.
Transcription
- 2.E. coli's RNA polymerase core enzyme does NOT include the subunit called _______.
- 3.The σ (sigma) subunit of E. coli's RNA polymerase is responsible for RNA polymerase binding to the site on the DNA called the _______.
- 4.In eukaryotes, there are several RNA polymerases and the one that makes pre-mRNA is RNA polymerase _______. (We didn't cover this one this year, 2010).
- 5.In eukaryotes, proteins other than RNA polymerase are needed for transcription to occur. Some of these are needed for the transcription of any gene and are called _______ transcription factors. (We didn't cover this one this year, 2010).
- 6.In eukaryotes, proteins other than RNA polymerase are needed for transcription to occur. Some of these are needed for the transcription of specific genes and are called _______ transcription factors. (We didn't cover this one this year, 2010).
- 7.In eukaryotes, _______ makes the larger rRNAs. (be specific) (We didn't cover this one this year, 2010).
- 8.In eukaryotes, _______ makes the smallest rRNAs and the tRNAs. (be specific) (We didn't cover this one this year, 2010).
- 9.In eukaryotes, the large 45S pre-rRNA molecule is cleaved and produces the ____S rRNA, the 18S rRNA, and the 5.8S rRNA. (We didn't cover this one this year, 2010).
- 10.In eukaryotes, after about 20-30 nucleotides of the pre-mRNA have been synthesized, a(n) _______ is added to the 5' end of the pre-mRNA.
- 11.The process of adding about 200 A ribonucleotides onto the 3' end of the pre-mRNA is called ________.
- 12._______ of the pre-mRNA stimulates the process of transcription termination. (We didn't cover this one this year, 2010).
- 13.Splicing removes segments called _______ from the pre-mRNA.
- 14.As a result of splicing, two segments called _______, which are located on opposite sides of an intron, are joined together.
- 15.
The photo at the top is evidence for the process of _______. - 16.RNA processing includes two processes: __________ and __________ (type in both words separated by a space, either order).
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