Question 9 (1 point) What is the function of a ribosome? Question 9 options: To
ID: 163989 • Letter: Q
Question
Question 9 (1 point)
What is the function of a ribosome?
Question 9 options:
To direct transcription
To attach amino acids to the appropriate tRNAs
To unwind the double-stranded DNA helix to enable translation
To hold mRNA and tRNAs in the correct positions to enable translation
To make more mRNA
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Question 10 (1 point)
What is the role of tRNA in translation?
Question 10 options:
It brings together two subunits of a ribosome.
It couples an amino acid with aminoacyl-tRNA synthetase.
It helps fold up the finished polypeptide chain.
It catalyzes peptidyl transferase activity.
It binds to an mRNA codon and carries the corresponding amino acid.
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Question 11 (1 point)
Which of the following events signals the termination of translation?
Question 11 options:
The ribosome reaches the end of the mRNA.
The ribosome reaches a start codon.
The ribosome reaches a stop codon.
The ribosome runs out of charged tRNAs.
The polypeptide chain folds into a protein.
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Question 12 (1 point)
A peptide bond forms between the ________ of one amino acid and the ________ of another.
Question 12 options:
amino group, carboxyl group
amino group, R group
carboxyl group, sulfide group
amino group, phosphate group
R group, R group
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To direct transcription
To attach amino acids to the appropriate tRNAs
To unwind the double-stranded DNA helix to enable translation
To hold mRNA and tRNAs in the correct positions to enable translation
To make more mRNA
Explanation / Answer
9.
Function of a ribosome is to hold mRNA and tRNAs in the correct positions to enable translation.
10.
The role of tRNA in translation is that, It binds to an mRNA codon and carries the corresponding amino acid.
11.
The ribosome reaches a stop codon signals the termination of translation
12.
A peptide bond forms between the amino group of one amino acid and the carboxylic group of another.
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