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Questions and Answers
The sequence of amino acids in a protein is referred to as its primary structure.
The sequence of amino acids in a protein is referred to as its primary structure.
True
Regardless of the amino acid to be bound to a tRNA molecule, all tRNA molecules use the same sequence at their 3' end to serve as the amino acid attachment site.
Regardless of the amino acid to be bound to a tRNA molecule, all tRNA molecules use the same sequence at their 3' end to serve as the amino acid attachment site.
True
Which is a function of the signal-recognition particle (SRP)?
Which is a function of the signal-recognition particle (SRP)?
Structurally and functionally related groups of proteins are referred to as:
Structurally and functionally related groups of proteins are referred to as:
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Which one of the statements about translation in eukaryotes is correct?
Which one of the statements about translation in eukaryotes is correct?
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Some enzymes are translated in the cytosol but remain inactive until they are phosphorylated by another enzyme, a kinase. Once they are phosphorylated, these enzymes become active. The phosphorylation of the enzyme would be considered a posttranslational modification.
Some enzymes are translated in the cytosol but remain inactive until they are phosphorylated by another enzyme, a kinase. Once they are phosphorylated, these enzymes become active. The phosphorylation of the enzyme would be considered a posttranslational modification.
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There is approximately the same number of protein families as there are folding domains.
There is approximately the same number of protein families as there are folding domains.
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The tRNA that binds the start codon has the sequence ______ at its ______.
The tRNA that binds the start codon has the sequence ______ at its ______.
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Study Notes
Biology 1050 Final Exam (2023FA)
- The sequence of amino acids in a protein is called its primary structure.
- All tRNA molecules use the same 3' end as the amino acid attachment site, regardless of the amino acid.
- The signal-recognition particle (SRP) directs proteins to the rough endoplasmic reticulum.
Protein Related Groups
- Structurally and functionally related proteins are called families.
Translation in Eukaryotes
- An initiation complex recognizes the 5' cap structure and scans for the first AUG triplet.
- Translation continues until the ribosome reaches the end of the mRNA.
- There is an untranslated region at the 3' end of mRNA.
Post-translational Modification
- Some enzymes are translated in the cytosol and remain inactive until they are phosphorylated by a kinase.
- Phosphorylation of an enzyme is a post-translational modification.
Protein Families and Folding Domains
- There are approximately the same number of protein families as folding domains.
tRNA Sequence
- The tRNA that binds the start codon has the sequence 5'-AUG-3' as an anticodon.
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Description
Prepare for your Biology 1050 final exam with this comprehensive review quiz. It covers key concepts such as protein structure, translation in eukaryotes, and post-translational modifications. Test your knowledge and ensure you're ready for the exam!
