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Cell Biology Practice Test: Gene Expression
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Gene expression is the process of using information from a gene to create a functional gene product. This product can then produce end products, such as proteins or non-coding RNA, which can affect a phenotype. Gene expression involves transcribing genes into mRNAs, and then translating the mRNAs into proteins. The central dogma of molecular biology describes the directional flow of information during the expression of a protein-coding gene. This flow goes from DNA to RNA to protein.  Gene expression is important because a specific protein can only be produced when its gene is turned on. It... Show more
Cell Biology Practice Test: Gene Expression
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25 Questions

1. How many codons do not code for amino acids?
2. The transcription factors assist the RNA polymerase in locating ________________
3. Nontranscribed spacer is not transcribed.
4. Translation is the process of _____________________
5. Drosha is an ___________________
6. Promoter is a ____________________
7. In bacteria, binding of _________ factor to the RNA polymerase increases its affinity for promoter sites in the DNA.
8. The first RNAi therapeutics was aimed at treating ______________________
9. How many post-translational modifications occur in the pre-rRNA (primary transcript)?
10. The degeneracy of code was originally predicted by __________________
11. The human genome consists of _____ rDNA.
12. What takes place when siRNAs are used in place of dsRNA in mammalian cells?
13. TFIID is a ___________
14. Which of the following gene encodes for the white of a chicken egg?
15. Transfer RNAs (tRNA) are transcribed by _________________
16. RNA interference is not observed in vertebrates.
17. What is the intermediate between a gene and its polypeptide?
18. The genetic code is degenerate.
19. Which of the following RNAs are highly conserved?
20. All mature tRNAs have the sequence CCA at their 3’ end.
21. Aggregated clusters of rDNA in a cell are called _______________
22. More than one RNA polymerase can attach to the promoter site.
23. The “S” in the 80S ribosomes stands for _______________
24. Which enzyme makes the transcription, an essentially irreversible process?
25. Which of the following are ideal subjects for the study of rRNA synthesis and processing?