Biochemistry: Molecular Biology and Genetics
Core concepts in biochemistry covering mutations, protein synthesis, gene regulation, and the genetic code
Questions
Question 1 Multiple Choice (Single Answer)
When a different amino acid is incorporated at the corresponding site in the protein molecule, the type of mutation involved is ________.
- silent mutation
- missense mutation
- nonsense mutation
- frame shift mutation
- antisense mutation
Question 2 Multiple Choice (Single Answer)
Which of the following compounds inhibits peptidyl transferase in the 60S ribosomal subunit in eukaryotes?
- Puromycin
- Cycloheximide
- Ricin
- Chloremphenicol
- Diphtheria toxin
Question 3 Multiple Choice (Single Answer)
Which of the following DNA elements facilitates or enhances initiation at the promoter?
- Enhancer
- Promoter
- Activator
- Repressor
- Inducer
Question 4 Multiple Choice (Single Answer)
Which of the following type of genes are expressed at a reasonably constant rate and not known to be subject to regulation?
- Housekeeping genes
- Non-regulated genes
- Depressed genes
- Inducible genes
- Cistron
Question 5 Multiple Choice (Single Answer)
Which of the following is not the feature of genetic code?
- Degenerate
- Ambiguous
- Non-overlapping
- Not punctuated
- Universal