Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 13, Problem 5TY
Summary Introduction
Introduction: Protein sorting and the function of secreting is carried out by SRP RNA – protein complex. Polypeptides are directed to the plasma membrane in bacteria and to the ER in eukaryotes. In bacteria, the SRP is made up of one ncRNA and one protein and in eukaryotes; it has six proteins and one ncRNA.
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You design a protein with an N-terminal signal sequence and a single transmembrane domain. You also decide to tag your protein with GFP. If you want the GFP to be outside the cell, where should the GFP appear in the amino acid sequence?
a.
Between the transmembrane domain and the C-terminus
b.
Between the signal sequence and the transmembrane domain
c.
The GFP can be anywhere in the amino acid sequence
d.
At the C-terminal end of the protein (i.e., the last part of the protein to be translated
If you imagine a messenger RNA molecule in the cytoplasm of a cell, which of the following will likely affect how much protein is made by translation of this message?
A. The presence of appropriate snRNPs.
B. The length of the polyA tail.
C. The strength of hydrogen bonds holding the mRNA to ribosomal RNA.
D. The ability of the mRNA to pair with itself to form a helix-turn-helix structure.
A molecular biologist mutated a gene that encodes an enzyme (protein) that normally is secreted from the cell. The mutation resulted in the enzyme still being made, but it is now located in the cytoplasm. What do you think the molecular biologist changed in the cell coding this enzyme?
a.
The active site.
b.
The signal recognition particle (SRP).
c.
The signal sequence.
d.
The signal recognition particle receptor.
Chapter 13 Solutions
Biology
Ch. 13.1 - Prob. 1CCCh. 13.2 - Prob. 1CCCh. 13.3 - Prob. 1EQCh. 13.3 - Prob. 2EQCh. 13.3 - Prob. 3EQCh. 13.3 - Effects of Non-coding RNAs on Translation and mRNA...Ch. 13.4 - Non-coding RNAs and Protein Sorting Core Skill:...Ch. 13.5 - Core Skill: Modeling The goal of this modeling...Ch. 13 - Prob. 1TYCh. 13 - Prob. 2TY
Ch. 13 - Prob. 3TYCh. 13 - Prob. 4TYCh. 13 - Prob. 5TYCh. 13 - Prob. 6TYCh. 13 - With regard to miRNAs and siRNAs, which of the...Ch. 13 - Cas1 and Cas2 proteins play a role during which of...Ch. 13 - Which of the following components bind to...Ch. 13 - Abnormalities in the expression of ncRNAs are...Ch. 13 - An ncRNA may have one or more of the following...Ch. 13 - What is RNA interference (RNAi)? Explain how the...Ch. 13 - Prob. 3CQCh. 13 - Prob. 1COQCh. 13 - Go to the PubMed website and search for non-coding...
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