18 Questions
What is a key function of rRNA in the process of protein synthesis?
Combining with proteins to form ribosomes
What is the primary function of the Shine-Dalgarno sequence in prokaryotic translation?
To bind the mRNA to the ribosome
In prokaryotic translation initiation, what is the first step?
Loading of initiation factors to the 30s ribosomal subunit
What is the result of the binding of the large ribosomal subunit to the 30S initiation complex?
The formation of the 70S initiation complex
What is the difference between prokaryotic and eukaryotic ribosomes?
Prokaryotic ribosomes have a different structure than eukaryotic ribosomes
What is the role of the initiator tRNA in translation initiation?
To carry the amino acid methionine to the ribosome
What is the function of the 30s ribosomal subunit in prokaryotic translation initiation?
It binds to the initiation factors
What is the significance of the AUG sequence in translation initiation?
It codes for the amino acid methionine
What is the energy source for the binding of the large ribosomal subunit to the 30S initiation complex?
GTP hydrolysis
What is the role of the small ribosomal subunit in protein synthesis?
It binds to the initiation factors and GTP
What is the structure of the ribosome during protein synthesis?
A combination of 30S and 50S subunits
What is the purpose of the initiation complex in translation initiation?
To initiate protein synthesis
What is the function of ribosomal RNA (rRNA) in protein synthesis?
To translate the information in mRNA
What is the difference between prokaryotic and eukaryotic ribosomes?
Prokaryotic ribosomes are 70S and eukaryotic ribosomes are 80S
What is the structure of the ribosome composed of?
rRNA and ribosomal proteins
What is the function of the P-site in the ribosome?
To bind to the tRNA
What is the function of the Esite in the ribosome?
To release the tRNA
How many sites does the ribosome have?
3
Learn about the binding of mRNA to the ribosome in prokaryotes, including details about the ribosome-binding site and the Shine-Dalgarno sequence. Understand the role of initiator-tRNA carrying methionine in the translation process.
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