Biochemistry
8th Edition
ISBN: 9781285429106
Author: Campbell, Mary K., FARRELL, Shawn O.
Publisher: Cengage Learning,
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Chapter 9, Problem 52RE
Interpretation Introduction
Interpretation:
The reason behind 50S ribosomal subunit and a 30S ribosomal subunit combine to form 70S subunit, instead of an 80S subunit is to be interpretated.
Concept Introduction:
Ribosomes and ribosomal RNA subunits has been studied on the basis of sedimentation coefficients. S is the Svedberg's unit. The sedimentation rate for a particle of a given size and shape measures how fast the particle 'settles'. The S value increase with the molecular weight of the sedimenting particle, but it is not directly proportional to it because the particle’s shape also affects its sedimentation rate.
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In 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?
Indicate the amino acid sequence of the protein encoded by the following mRNA molecule. Use the genetic code table and assume that the very first “AUG” the ribosome encounters will serve as the start codon and specify methionine.
5’-AAUUCAUGCCCAAAUUUGGGGCACGAAGCUUCUUAGGCUAGUCCUAAAAAA-3’
Why would 60S and 40S ribosomal subunits make an 80S ribosome rather than a 100S ribosome?
Chapter 9 Solutions
Biochemistry
Ch. 9 - REFLECT AND APPLY Consider the following in light...Ch. 9 - Prob. 2RECh. 9 - RECALL What is the structural difference between...Ch. 9 - RECALL Give the name of the base, the...Ch. 9 - RECALL What is the difference between ATP and...Ch. 9 - RECALL Give the sequence on the opposite strand...Ch. 9 - RECALL Are the sequences shown in Question 6 those...Ch. 9 - REFLECT AND APPLY (a) Is it biologically...Ch. 9 - REFLECT AND APPLY A friend tells you that only...Ch. 9 - REFLECT AND APPLY In the early days of molecular...
Ch. 9 - REFLECT AND APPLY Why is RNA more vulnerable to...Ch. 9 - Prob. 12RECh. 9 - RECALL Draw a GC base pair. Draw an AT base pair.Ch. 9 - RECALL Which of the following statements is (are)...Ch. 9 - Prob. 15RECh. 9 - BIOCHEMICAL CONNECTIONS Describe the landmark case...Ch. 9 - Prob. 17RECh. 9 - Prob. 18RECh. 9 - RECALL Which of the following statements is (are)...Ch. 9 - RECALL Define supercoiling, positive supercoil,...Ch. 9 - RECALL What is propeller twist?Ch. 9 - RECALL What is an AG/CT step?Ch. 9 - RECALL Why does propeller-twist occur?Ch. 9 - Prob. 24RECh. 9 - RECALL If circular B-DNA is positively...Ch. 9 - RECALL Briefly describe the structure of...Ch. 9 - Prob. 27RECh. 9 - REFLECT AND APPLY List three mechanisms that relax...Ch. 9 - REFLECT AND APPLY Explain how DNA gyrase works.Ch. 9 - Prob. 30RECh. 9 - REFLECT AND APPLY Would you expect to find...Ch. 9 - REFLECT AND APPLY One of the original structures...Ch. 9 - REFLECT AND APPLY What is the complete base...Ch. 9 - REFLECT AND APPLY Why was it necessary to specify...Ch. 9 - Prob. 35RECh. 9 - Prob. 36RECh. 9 - Prob. 37RECh. 9 - BIOCHEMICAL CONNECTIONS A recent commercial for a...Ch. 9 - REFLECT AND APPLY A technology called PCR is used...Ch. 9 - REFLECT AND APPLY Why does DNA with a high AT...Ch. 9 - Prob. 41RECh. 9 - Prob. 42RECh. 9 - Prob. 43RECh. 9 - Prob. 44RECh. 9 - 45. Why does the absorbance increase when a DNA...Ch. 9 - Prob. 46RECh. 9 - REFLECT AND APPLY Would you expect tRNA or mRNA to...Ch. 9 - REFLECT AND APPLY The structures of tRNAs contain...Ch. 9 - REFLECT AND APPLY Would you expect mRNA or rRNA to...Ch. 9 - REFLECT AND APPLY Which would be more harmful to a...Ch. 9 - Explain briefly what happens to eukaryotic mRNA...Ch. 9 - Prob. 52RE
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- From this overall anticodon sequence in tRNA, 3'-CAUCGGAAUAGAUCGCUAGUGGCAGGCAUAAUGAUCACCGGUCUGAGAAAAGUGGUACAUAUCAAC-5' What is the amino acid sequence that will be coded for using THREE-letter amino acid code starting from N-terminus to C-terminus.arrow_forwardFrom this overall anticodon sequence in tRNA, 3'-CAUCGGAAUAGAUCGCUAGUGGCAGGCAUAAUGAUCACCGGUCUGAGAAAAGUGGUACAUAUCAAC-5' Using ONE-letter amino acid code starting from N-terminus to C-terminus, what is the amino acid sequence that will be coded for?arrow_forwardExplain whether the specificity of lysine incorporation by lysyl-tRNA synthetase depends on tRNA or lysine, how does it work ?arrow_forward
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