Genetics: From Genes to Genomes, 5th edition
5th Edition
ISBN: 9780073525310
Author: Leland H. Hartwell, Michael L. Goldberg, Janice A. Fischer, Leroy Hood, Charles F. Aquadro
Publisher: McGraw-Hill Education
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Chapter 8, Problem 16P
Charles Yanofsky isolated many different trpA- mutants (Fig. 8.3, p. 257).
| a. | Explain how he could identify trp- auxotrophs of E. coli using replica plating (recall Fig. 7.6, p. 212). |
| b. | Assuming that the role of TrpA enzyme in the tryptophan biosynthesis pathway was known, explain how Yanofsky could have identified trpA- mutants among his trp- auxotrophs. (Hint: Recall Beadle and Tatum’s one gene, one enzyme experiments in Chapter 7.) |
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Date:
Investigation: Is a dog more closely related to a coyote or a wolf?
Gray Wolf
Species Name: Canis lupus
Color: Light gray to black
Size: 80-120 pounds, 2.5 feet tall
Appearance: broad snout, round ears, long tail
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Size: 20-50 pounds, 1.5 feet tall
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Species Name: Canis lupus familiaris
Color: Gray and white or brown and white
Size: 70-80 pounds, 2 feet tall
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Chapter 8 Solutions
Genetics: From Genes to Genomes, 5th edition
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 on p. 260 may have...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 - Prob. 13PCh. 8 - How many possible open reading frames frames...Ch. 8 - a. In Fig. 8.3 on p. 257, the physical map the...Ch. 8 - Charles Yanofsky isolated many different trpA-...Ch. 8 - Remembering that the wobble base of the tRNA is...Ch. 8 - The sequence of a segment of mRNA, beginning with...Ch. 8 - You identify a proflavin-generated allele of a...Ch. 8 - In certain bacterial species, pyrrolysine Pyl,...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 - 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 - In prokaryotes, a search for genes in a DNA...Ch. 8 - The yeast gene encoding a protein found in the...Ch. 8 - The sequence of a complete eukaryotic gene...Ch. 8 - Using recombinant DNA techniques which will be...Ch. 8 - a. The genetic code table shown in Fig. 8.2 on p....Ch. 8 - Arrange the following list of eukaryotic gene...Ch. 8 - Concerning the list of eukaryotic gene elements in...Ch. 8 - The human gene for 2 lens crystallin has the...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 - When 1 million cells of a culture of haploid yeast...Ch. 8 - Why is a nonsense suppressor tRNATyr, even though...Ch. 8 - Prob. 42PCh. 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 - There is at least one nonsense suppressing tRNA is...Ch. 8 - Prob. 47PCh. 8 - Brenners m mutant phages m1 m6 described in Fig....
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