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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 Study Notes
- Primary Protein Structure: The sequence of amino acids.
- tRNA Amino Acid Attachment Site: All tRNA molecules use the same 3' end for amino acid attachment, regardless of the amino acid.
- Signal-Recognition Particle (SRP) Function: The SRP binds to the SRP receptor on the rough endoplasmic reticulum, directing proteins there.
- Structurally and Functionally Related Proteins: Called protein families or domains.
- Eukaryotic Translation: The initiation complex recognizes the 5' cap and scans for the first AUG triplet. Translation continues until the ribosome reaches the end of the mRNA.
- Post-Translational Modification: Phosphorylation of an enzyme by a kinase is a post-translational modification.
- Protein Families and Folding Domains: There is approximately the same number of protein families as there are folding domains.
- Start Codon tRNA Sequence: The tRNA that binds the start codon (AUG) has the sequence 5'-AUG-3' which is the anticodon.
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Description
Prepare for your Biology 1050 final exam with this comprehensive study guide. Cover essential topics such as protein structure, translation, and post-translational modifications. Review key concepts including the functions of tRNA and signal-recognition particles to ensure a solid understanding of molecular biology.
