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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. After transcribing into RNA, the gene is spliced out of the genome.
2. Which enzyme makes the transcription, an essentially irreversible process?
3. Eukaryotic mRNAs have special modifications, not present in prokaryotic mRNAs.
4. 5S rRNA is present only in eukaryotes.
5. Which region of the tRNA molecule is highly variable?
Find the region of the highly variable tRNA molecule
6. Which of the following has the smallest half life?
7. The studies that led to discovery of posttranscriptional gene silencing phenomena were performed on ____________
8. Which technique was used to find the relationship between 15S and 10S globin RNAs?
9. First artificially synthesized gene sequence was _________________
10. Which among the following have the largest number of tRNA genes?
11. When was the first base sequence of a transfer RNA reported?
12. Which of the following gene encodes for the white of a chicken egg?
13. RNA interference is evolved as a genetic immune system.
14. Which of the following is a stop codon in mitochondrial mRNA?
15. Translation is the process of _____________________
16. What takes place when siRNAs are used in place of dsRNA in mammalian cells?
17. Genes with intervening (non-coding) sequences are called ___________________
18. The synthesis of polypeptide can be divided into ______ distinct activities.
19. Which of the following RNAs are highly conserved?
20. The processing of pre-rRNA is done using __________
21. The “wobble hypothesis” was proposed by ______________________
22. Which of the two strands of DNA will be transcribed is determined by the _______________
23. How many types of distinct ribosomal RNAs are present in eukaryotic ribosomes?
24. Which type of RNAs suppress the movement of transposons in the germline?
25. The degeneracy of code was originally predicted by __________________