Protein Synthesis Quiz
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- 1.Introns are
- A.
Noncoding sections of RNA
- B.
Coding sections of RNA
- C.
Complex of molecules that cut out the introns and splice together the exons; consists of snRNPs and proteins
- D.
Involves the removal of introns, fusing of the exons, and the addition of a 5' cap and a Poly A tail to RNA
- 2.Region of DNA where RNA polymerase binds and transcription begins
- A.
Transcription factors
- B.
TATA box
- C.
RNA polymerase
- D.
Promoter
- E.
Termination Sequence
- 3.Ribosomes that generally make proteins for use within the cell
- A.
Free
- B.
Attached
- 4.MRNA binds to the small ribosomal subunit during
- A.
Elongation
- B.
Termination
- C.
Initiation
- 5.Short sequence in the promoter where transcription factors bind
- A.
TATA box
- B.
Promoter
- C.
RNA polymerase
- D.
Initiation Sequence
- E.
Termination Sequence
- 6.
- A.
True of eukaryotic transcription
- B.
True of both eukaryotic and prokaryotic transcription
- C.
True of prokaryotic transcription
- 7.What RNA strand would be produced from the following DNA strand?CCTCATGGC
- A.
GGAGTACCG
- B.
CCTCATGGC
- C.
CCUCAUGGC
- D.
GGAGUACCG
- 8.Which molecule picks up amino acids and brings them to the ribosome?
- A.
DNA
- B.
MRNA
- C.
TRNA
- 9.Which of the following is true of ribosomes?
- A.
Ribosomes consist of DNA and Protein
- B.
Ribosomes consist of a single unit
- C.
Ribosomes have 3 binding sites (A,P andE)
- D.
Ribosomes are the site of DNA replication
- 10.
- A.
A mutagen that causes the replacement of one DNA base for another
- B.
The base pairing between mRNA and tRNA
- C.
Relaxation of base pairing of the 3rd base in the the triplet codon
- D.
The process of peptide bond formation between amino acids
- 11.What is the function of RNA polymerase?
- A.
Form peptide bonds between amino acids
- B.
Add RNA nucleotides to exposed bases on DNA
- C.
Produce the RNA primer required for DNA replication
- D.
Produce Amino Acids
- 12.The stop codon on mRNA reaches the A site during when?
- A.
Elongation
- B.
Termination
- C.
Initiation
- 13.Where does translation occur?
- A.
In the nucleus of the cell
- B.
Outside the cell
- C.
At the ribosomes in the cytoplasm of the cell
- 14.All of the following enzymes are involved in DNA replication EXCEPT
- A.
Helicase
- B.
DNA ligase
- C.
DNA polymerases
- D.
RNA polymerases
- E.
Primase
- 15.In bacteria, a small circular piece of DNA found outside the main chromosome is called a
- A.
Plasmid
- B.
CDNA
- C.
RFLP
- D.
PCR
- E.
Genetic fingerprint
- 16.
- A.
An insertion of a nucleotide triplet into a DNA strand that codes for mRNA
- B.
A deletion of a nucleotide triplet from a DNA strand that codes for mRNA
- C.
A single substitution of a nucleotide in a DNA strand that, when transcribed, results in a change in the nucleotide occupying the third codon position in an mRNA
- D.
A single substitution of nucleotide in a DNA strand that, when transcribed, results in a change in the nucleotide occupying the first codon position in an mRNA
- E.
A single addition of a nucleotide in a DNA strand that codes for an mRNA
- 17.RNA has all of the following EXCEPT:
- A.
Ribose
- B.
Single strand
- C.
Contains uracil
- D.
Deoxyribose
- 18.The lac operon in E.coli is involved in
- A.
Regulation the expression of a gene
- B.
Regulating the translation of mRNA
- C.
Controlling the formation of ribosomes
- D.
Controlling DNA replication
- E.
Preventing the transfer of the F plasmid
- 19.An mRNA actively being translated in the cytoplasm would have all of the following EXCEPT:
- A.
A poly-A tail
- B.
A 5' cap
- C.
Exons
- D.
Introns
- E.
RNA nucleotides
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