Genetics: From Genes to Genomes
6th Edition
ISBN: 9781259700903
Author: Leland Hartwell Dr., Michael L. Goldberg Professor Dr., Janice Fischer, Leroy Hood Dr.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 8, Problem 28P
a. | Can a tRNA exist that has the anticodon sequence 5′ IAA? If so, which amino acid would it carry? |
b. | Answer the same question for the anticodon sequence 5′xm5s2UAA. |
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(a) How many activation cycles are needed for a protein with 150 amino acids? (b) How many initiation cycles are needed for a protein with 150 amino acids? (c) How many elongation cycles are needed for a protein with 150 amino acids? (d) How many termination cycles are needed for a protein with 150 amino acids?
Once translated into proteins:
(a) How many nucleotides are there?
(b) How many codons are there?
(c) How many amino acids?
Explain how nucleic acid information is translated into aminoacid sequence and define the role of aminoacyl tRNA synthetases in this process
Chapter 8 Solutions
Genetics: From Genes to Genomes
Ch. 8 - For each of the terms in the left column, choose...Ch. 8 - Match the hypothesis from the left column to the...Ch. 8 - How would the artificial mRNA 5GUGUGUGU . . . 3 be...Ch. 8 - An example of a portion of the T4 rIIB gene in...Ch. 8 - Consider Crick and Brenners experiments in Fig....Ch. 8 - The HbSsickle-cell allele of the human -globin...Ch. 8 - The following diagram describes the mRNA sequence...Ch. 8 - The amino acid sequence of part of a protein has...Ch. 8 - The results shown in Fig. 8.5 may have struck you...Ch. 8 - Identify all the amino acid-specifying codons in...
Ch. 8 - Before the technology existed to synthesize RNA...Ch. 8 - A particular protein has the amino acid sequence...Ch. 8 - How many possible open reading frames frames...Ch. 8 - Prob. 14PCh. 8 - Charles Yanofsky isolated many different trpA-...Ch. 8 - The sequence of a segment of mRNA, beginning with...Ch. 8 - You identify a proflavin-generated allele of a...Ch. 8 - Using recombinant DNA techniques which will be...Ch. 8 - Describe the steps in transcription that require...Ch. 8 - Chapters 6 and 7 explained that mistakes made by...Ch. 8 - The coding sequence for gene F is read from left...Ch. 8 - If you mixed the mRNA of a human gene with the...Ch. 8 - Prob. 23PCh. 8 - The Drosophila gene Dscam1 encodes proteins on the...Ch. 8 - Describe the steps in translation that require...Ch. 8 - Locate as accurately as possible the listed items...Ch. 8 - Concerning the figure for Problem 26: a. Which...Ch. 8 - a. Can a tRNA exist that has the anticodon...Ch. 8 - For parts a and b of Problem 28, consider the DNA...Ch. 8 - Remembering that the wobble base of the tRNA is...Ch. 8 - Prob. 31PCh. 8 - The yeast gene encoding a protein found in the...Ch. 8 - The sequence of a complete eukaryotic gene...Ch. 8 - Arrange the following list of eukaryotic gene...Ch. 8 - Prob. 35PCh. 8 - The human gene for 2 lens crystallin has the...Ch. 8 - In prokaryotes, a search for genes in a DNA...Ch. 8 - a. The genetic code table shown in Fig. 8.2...Ch. 8 - a. Very few if any eukaryotic genes contain tracts...Ch. 8 - Explain how differences in the initiation of...Ch. 8 - Do you think each of the following types of...Ch. 8 - Null mutations are valuable genetic resources...Ch. 8 - The following is a list of mutations that have...Ch. 8 - Considering further the mutations described in...Ch. 8 - Adermatoglyphia described previously in Problem 18...Ch. 8 - Prob. 46PCh. 8 - You learned in Problem 21 in Chapter 7 that the...Ch. 8 - When 1 million cells of a culture of haploid yeast...Ch. 8 - Why is a nonsense suppressor tRNATyr, even though...Ch. 8 - A mutant B. adonis bacterium has a nonsense...Ch. 8 - You are studying mutations in a bacterial gene...Ch. 8 - Another class of suppressor mutations, not...Ch. 8 - Yet another class of suppressor mutations not...Ch. 8 - At least one nonsense suppressing tRNA is known...Ch. 8 - An investigator was interested in studying UAG...Ch. 8 - Prob. 56PCh. 8 - In certain bacterial species, pyrrolysine Pyl,...Ch. 8 - Canavanine is an amino acid similar to arginine...
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- 1b) Give the anticodon of the tRNA that would be complementary or a perfect match to the codon 5'AGG3'.arrow_forwardA tRNA has an anticodon sequence 3′– GGU–5′. Identify the amino acidit is carrying?arrow_forwardAn anticodon has the sequence GCG. What amino acid does this tRNA carry? What would be the effect of a mutation that changed the C of the anticodon to G?arrow_forward
- Determine whether this statement is true or false: Aminoacyl-tRNA synthetase covalently links the amino acid to the 5’ end of the correct tRNA molecule.arrow_forwardExplain whether the specificity of lysine incorporation by lysyl-tRNA synthetase depends on tRNA or lysine, how does it work ?arrow_forwardIf the mRNA produced had the sequence ACGCGU, What would be the tRNA anticodon sequence?arrow_forward
- If a tRNA molecule carries a glutamic acid, what are the two possible anticodon sequences that it could contain? Be specific about the 5′ and 3′ ends.arrow_forwardExplain what would not occur if aminoacyl-tRNA synthatase was mutated and did not function.arrow_forwardGive typing answer with explanation and conclusion Which of the following statements regarding the structure and function of tRNA is true? A-The codon / anticodon pairing is absolutely universal among organism. B-The charging of a tRNA does not require energy. C-There are 64 different tRNAs, one for each possible codon. D-Reading 5' to 3', the first base in the anticodon can participate in non Watson and Crick base pairing E- The 3' end of each tRNA has a unique sequence so a specific amino acid can be attached.arrow_forward
- A tRNA has the anticodon sequence 3ʹ-G A A -5ʹ. Which amino acid is attached to it?arrow_forwardIdentify which regions of DNA encode the protein sequence. Consider that there may be introns (which often start with sequence GU and end with the sequence AG).arrow_forwardIf a tRNA anticodon is CAA what is its corresponding mRNA codon? For the genetic code which amino acid does this codon codify?arrow_forward
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