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- 1. Multiple Choice
An enzyme which cuts out portions of mRNA that are not needed.
Intron
Exon
Protective End
Spliceosome
- 2. Multiple Choice
A portion of mRNA that is kept to translate into a protein
Intron
Exon
Protective End
Spliceosome
- 3. Multiple Choice
A portion of mRNA that is not needed to make a protein and is thus cut or spliced out.
Intron
Exon
Protective End
Spliceosome
- 4. Multiple Choice
Added after mRNA editing to keep the structure safe from RNAse destruction.
Intron
Exon
Protective End
Spliceosome
- 5. Multiple Choice
Which of the following is not a structure added to the mRNA after it is edited?
5’ methyl G cap
3’ poly-A tail
5’ poly-A tail
Protective ends
- 6. Multiple Choice
Why do we need RNAse to destroy RNA if it is so important to our cells?
To destroy weakened RNA
To break down RNA for reuse
To protect from cancer growth
To destroy foreign RNA such as from a virus
- 7. Multiple Choice
A codon has how many base pairs?
1
2
3
4
- 8. Multiple Choice
Which of the following is the start codon which codes for the amino acid methionine?
AUA
AUC
AUG
AUU
- 9. Multiple Choice
How many stop codons exist in mRNA?
1
2
3
4
- 10. Multiple Choice
Transfer or tRNA molecules are bonded to a single amino acid and contain which other structure?
Precodon
Anticodon
Stop Codon
Thymine base (T)
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