Translation Flashcards
0
Q
The code is ambiguous
A
One code is specific to one amino acid
1
Q
What are the bases in the RNA template
A
A c g u
2
Q
The code is degenerate
A
There could be many codes for one amino acid
3
Q
Three steps of translation
A
Initiation
Elongation
Termination
4
Q
rnas involved
A
Mrna
Rrna
Trna
5
Q
Initiation
A
- small ribosomal subunit comes in and binds to mRNA at 5’ end
- —– in prok it binds at the shine dalgarno - Met-tRNA binds to the start codon by its anticodon at the P site
- The large ribosomal subunit then binds
6
Q
A P and E site
A
A: aminoacyl site
P: peptidyl site
E: exit site
7
Q
Elongation
A
- The second charged tRNA binds at the A site
- –requires GTP hydrolysis - Peptide formation
- Translocation A->P->E
8
Q
Termination
A
Release factor binds when the stop codon appears in the A site