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| 3166910890 | The central dogma of molecular biology states that information flows from: a) DNA to RNA to proteins b) Proteins to RNA to DNA c) RNA to DNA to proteins d) DNA to proteins to RNA e) RNA to proteins to DNA | a) DNA to RNA to proteins | 0 | |
| 3166916762 | Translation is the process of making mRNA from the DNA template strand. a) True b) False | b) False | 1 | |
| 3166923850 | Promoters and terminators are found: a) On the template (DNA) strand b) On the mRNA c) At the ends of a polypeptide d) On the tRNA e) On the coding strands | a) On the template (DNA) strand | 2 | |
| 3166933916 | Translation occurs when: a) Information on the RNA directs the amino acid synthesis b) Peptide bonds are formed c) RNA is modified in the nucleus d) The RNA polymerase assembles the protein e) DNA polymerase III copies DNA into RNA | b) Peptide bonds are formed | 3 | |
| 3166940504 | Which of the following is NOT a type of RNA? a) mRNA b) snRNA c) tRNA d) rRNA e) All are types of RNA | e) All are types of RNA | 4 | |
| 3166951346 | What is the function of the 5' cap and the 3' poly-A-tail? a) Initiates transcription b) Forms bonds between amino acids c) Protects mRNA from degradation d) Splices out the intron seuences e) Acts as a stop codon in some polypeptides | c) Protects mRNA from degradation | 5 | |
| 3166964008 | Aminoacyl-tRNA synthetases: a) Bind the correct amino acid to the empty tRNA b) Bind the tRNA to the anticodon c) Bind the amino acids together d) Bind the tRNA to the mRNA e) Cut and assemble the tRNA molecule | a) Bind the correct amino acid to the empty tRNA | 6 | |
| 3166969263 | snRNPs are responsible for splicing out the non-coding exon regions. a) True b) False | b) False | 7 | |
| 3166976657 | Empty tRNA molecules leave the ribosome at the: a) P-site b) E-site c) A-site d) T-site e) X-site | b) E-site | 8 | |
| 3166983299 | Where does transcription take place? a) In the nucleus b) In the nucleolus c) In the cytoplasm d) On the ribosome e) On the rough ER | a) In the nucleus | 9 | |
| 3166992127 | Substituting an adenine nucleotide for a guanine nucleotide would cause a frameshift mutation. a) True b) False | b) False | 10 | |
| 3167002653 | The start codon (AUG) also codes for methionine. How does this affect the protein? a) All proteins start with AUG b) AUG signals the beginning and the end of the protein c) The DNA code for the protein starts with AUG d) All proteins begin with methionine e) All mRNA strands start with methionine | d) All proteins begin with methionine | 11 | |
| 3167009926 | All stop codons code for proline. Proteins, therefore, begin with methionine and end with proline. a) True b) False | b) False | 12 | |
| 3167022668 | If RNA polymerase reads the sequence 3'ATCTTA5', which of the following sequences will make it in mRNA? a) 5'GACUUA3' b) 3'UAGAAU5' c) 3'TAGAAU5' d) 5'UAGAAU3' e) 5'TUGUUG3' | d) 5'UAGAAU3' | 13 | |
| 3167028794 | The codon AUG matches with the anticodon a) AUG b) TAC c) CAT d) UAC e) GTU | d) UAC | 14 | |
| 3167040777 | When a substitution mutation changes the codon CCC to the codon CCA, both code for proline. What type of mutation is this? a) Missense mutation b) Nonsense mutation c) Frameshift mutation d) Transposition mutation e) Silent mutation | e) Silent mutation | 15 | |
| 3167051374 | Peptidyl transferase forms peptide bonds. Where is this enzyme located? a) In the nucleus b) At the intron/exon junction c) At the codon/anticodon interface d) On the large ribosomal sub-unit e) On the rER signal recognition particle binding site | d) On the large ribosomal sub-unit | 16 | |
| 3167060467 | Where does translation take place? a) In the rough ER lumen b) In the cytoplasm c) On a ribosome d) In prokaryotic cells e) All of the above | e) All of the above | 17 |
