BIOLOGY 12TH ED (LL) W/ CONNECT
12th Edition
ISBN: 9781264898091
Author: Raven
Publisher: MCG
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Textbook Question
Chapter 15.6, Problem 1LO
Explain why the tRNA charging reaction is critical to translation.
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Describe the charging process of a tRNA.
The covalent attachment of an amino acid to a tRNA is an endergonic reaction. In other words, it requires an input of energy for the reaction to proceed. Where does the energy come from to attach amino acids to tRNA molecules?
Describe the processing events that occur during the production of tRNA in E. coli.
Chapter 15 Solutions
BIOLOGY 12TH ED (LL) W/ CONNECT
Ch. 15.1 - Prob. 1LOCh. 15.1 - Prob. 2LOCh. 15.1 - List the roles played by RNA in gene expression.Ch. 15.2 - Prob. 1LOCh. 15.2 - Describe the characteristics of the genetic code.Ch. 15.2 - Prob. 3LOCh. 15.3 - Prob. 1LOCh. 15.3 - Differentiate among initiation, elongation, and...Ch. 15.3 - Prob. 3LOCh. 15.4 - Prob. 1LO
Ch. 15.4 - Prob. 2LOCh. 15.4 - Explain the differences between bacterial and...Ch. 15.5 - Prob. 1LOCh. 15.5 - Prob. 2LOCh. 15.5 - Prob. 3LOCh. 15.6 - Explain why the tRNA charging reaction is critical...Ch. 15.6 - Prob. 2LOCh. 15.7 - Prob. 1LOCh. 15.7 - Prob. 2LOCh. 15.7 - Compare translation on the RER and in the...Ch. 15.9 - Prob. 1LOCh. 15.9 - Explain the nature of triplet repeat expansion.Ch. 15.9 - Prob. 3LOCh. 15 - Prob. 1DACh. 15 - Prob. 2DACh. 15 - Prob. 1IQCh. 15 - Prob. 2IQCh. 15 - Prob. 3IQCh. 15 - The experiments with nutritional mutants in...Ch. 15 - What is the central dogma of molecular biology? a....Ch. 15 - In the genetic code, one codon a. consists of...Ch. 15 - Eukaryotic transcription differs from prokaryotic...Ch. 15 - An anticodon would be found on which of the...Ch. 15 - RNA polymerase binds to a ________ to initiate...Ch. 15 - During translation, the codon in mRNA is actually...Ch. 15 - You have mutants that all affect the same...Ch. 15 - The splicing process a. occurs in prokaryotes. b....Ch. 15 - The enzyme that forms peptide bonds is called...Ch. 15 - In comparing gene expression in prokaryotes and...Ch. 15 - The codon CCA could be mutated to produce a. a...Ch. 15 - An inversion will a. necessarily cause a mutant...Ch. 15 - What is the relationship between mutations and...Ch. 15 - Prob. 1SCh. 15 - Frameshift mutations often result in truncated...Ch. 15 - Describe how each of the following mutations will...Ch. 15 - There are a number of features that are unique 10...
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- Explain whether the specificity of lysine incorporation by lysyl-tRNA synthetase depends on tRNA or lysine, how does it work ?arrow_forwardDescribe two special reaction sites on the tRNAarrow_forwardThe tertiary structure of a tRNA is shown below. Using the various colored areas (i.e., red, yellow, green, blue) as a marker, identify the region where the anticodon is found and identify the amino acid binding site. Explain the importance of the tRNA as an adaptor during protein synthesis.arrow_forward
- A tRNA has an anticodon sequence 3′– GGU–5′. Identify the amino acidit is carrying?arrow_forwardThe charging of a tRNA with an amino acid can be represented by the following equation:amino acid + tRNA + ATP → aminoacyl-tRNA + AMP + PPI where PPI is pyrophosphate (see figure 3–40). in the aminoacyl-tRNA, the amino acid and tRNA are linked with a high-energy covalent bond; a large portion of the energy derived from the hydrolysis of ATP is thus stored in this bond and is available to drive peptide bond formation at the later stages of protein synthesis. the free-energy change of the charging reaction shown in the equation is close to zero and therefore would not be expected to favor attachment of the amino acid to tRNA. Can you suggest a further step that could drive the reaction to completion?arrow_forwardUsing threonyl-tRNA synthetase as an example, account for the specificity of threonyl-tRNA formation.arrow_forward
- What two different things bind to the two different ends of a tRNA molecule?arrow_forwardA tRNA has an anticodon sequence 3′–GGU–5′. What amino acid does it carry?arrow_forwardIn the tertiary structure of tRNA, where is the anticodon region relative to the attachment site for the amino acid? Are these located adjacent to each other?arrow_forward
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