Molecular Genetics: Eukaryotic Protein Synthesis

17 Questions | By SOakley | Last updated: Mar 19, 2022 | Total Attempts: 109

Questions

Settings

Create your own Quiz

Molecular Genetics: Eukaryotic Protein Synthesis - Quiz

Questions based on Lecture 1. Of Molecular Genetics: Protein Synthesis with Dr Sealy-Lewis.

Questions and Answers

1.

Which stage of protein synthesis makes promoting Eukarotic genes in Prokaryotes difficult?
- A.
  
  Transcription
- B.
  
  Intiation
- C.
  
  Elongation
- D.
  
  Termination
2.

Prokaryotic intiation phase requires?
- A.
  
  5'Cap
- B.
  
  Removal of Introns
- C.
  
  Removal of Extrons
- D.
  
  Shine-Dalgarno sequence
- E.
  
  Addition of Poly AAA tail
3.

Eukaryotic intiation phase requires?
- A.
  
  Shine-Dalgarno Sequence
- B.
  
  Removal of Introns
- C.
  
  5' Cap
- D.
  
  Removal of Exons
- E.
  
  Addition of Poly AAA tail
4.

What are the functions of the 5' Cap?
- A.
  
  Regulation of nuclear export
- B.
  
  Prevention of degradation by exonucleases
- C.
  
  Promotion of translation
- D.
  
  Promotion of 5' intron excision
- E.
  
  Tag for degradation
- F.
  
  Ligation of exons
- G.
  
  Promotion of degradation by exonucleases
5.

Intiation in prokaryotes requires only 3 factors whereas eukaryotes use 13?
- A.
  
  True
- B.
  
  False
6.

AUG is the triplet code for Cysteine?
- A.
  
  True
- B.
  
  False
7.

What are the stop codons?
- A.
  
  UAG
- B.
  
  UAA
- C.
  
  UGA
- D.
  
  AUG
- E.
  
  AAG
8.

What is the start codon?
- A.
  
  AUG - Methionine
- B.
  
  ACA - Proline
- C.
  
  AGU - Serine
- D.
  
  AAU - Asparagine
9.

Elongation requires GTP?
- A.
  
  True
- B.
  
  False
10.

Imet stands for?
- A.
  
  Intiator methionine
- B.
  
  Inducer methionine
- C.
  
  Indigo methionine
11.

Which of the following is a prokaryotic inhibitor?
- A.
  
  Cycloheximide
- B.
  
  Ricin
- C.
  
  Abrin
- D.
  
  Streptomycin
12.

Which of the following is an Eukaryotic inhibitor?
- A.
  
  Ricin
- B.
  
  Erythromycin
- C.
  
  Tetracyclin
- D.
  
  Streptomycin
13.

Polycistronic mRNA is mRNA that encodes for multiple different proteins.
- A.
  
  True
- B.
  
  False
14.

Ubiquitin tagging prevents degradation by proteosomes?
- A.
  
  True
- B.
  
  False
15.

Which of the following statements are true regarding the start codon?
- A.
  
  It is found in the Kozak sequence
- B.
  
  It is the first codon in the scanning process
- C.
  
  It codes for Methionine
- D.
  
  It codes for Amber
- E.
  
  It can be up to 1000 bases from the cap
16.

Ribosomes are made of ________
- A.
  
  60s + 40s subunits
- B.
  
  40s + 40s subunits
- C.
  
  20s + 40s subunits
17.

Scanning is the process by which ___________
- A.
  
  The 40s subunit finds the stop codon
- B.
  
  The 40s subunit finds the start codon
- C.
  
  The 40s subunit finds an ATP source