EBK BROCK BIOLOGY OF MICROORGANISMS
15th Edition
ISBN: 8220103633352
Author: Stahl
Publisher: PEARSON
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Chapter 9, Problem 2AQ
Describe how one might determine which proteins In Escherichia coli are repressed when a culture is shifted from a minimal medium (containing only a single carbon source) to a rich medium containing many amino acids, bases, and vitamins. How might one study which genes are expressed during each growth condition?
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Describe how one might determine which protein in E. coli are repressed when a culture is shifted from a minimal medium (containing only a single carbon source) to a rich medium containing many amino acids, bases, and vitamins. How might one study which genes are expressed during each growth condition?
Yeast cells are eukaryotes, and they require a functional secretory pathway to grow and to maintain cellular organization. But surprisingly, when SRP is removed from yeast cells by deleting the relevant genes, the cells are still alive (although they grow slowly).
a) How can yeast survive without SRP? Propose two alternative hypotheses.
b) How might electron microscopy of normal and SRP-deficient yeast cells help you to distinguish between these two hypotheses?
what is the nature and likely location(s) of a mutant that would,
1)allow constitutive expression of the lac gene?
2)prevent the cell from responding to lactose ( genes are not induced when exposed to lactose)?
3) not allow the cell to utilize lactose even when the genes are induced
Chapter 9 Solutions
EBK BROCK BIOLOGY OF MICROORGANISMS
Ch. 9.1 - How many protein-encoding genes are in the human...Ch. 9.1 - List three examples of how genomics has led to...Ch. 9.1 - What is one discovery resulting from the...Ch. 9.2 - What key molecules are essential for danger...Ch. 9.2 - Prob. 2MQCh. 9.2 - What is the major problem in identifying genes...Ch. 9.2 - How can protein homology assist in genome...Ch. 9.3 - What lifestyle is typical of Bacteria and Archaea...Ch. 9.3 - Prob. 2MQCh. 9.3 - Prob. 3MQ
Ch. 9.3 - Prob. 1CRCh. 9.4 - Prob. 1MQCh. 9.4 - Prob. 2MQCh. 9.4 - Prob. 3MQCh. 9.4 - Which genomes are larger, those of chloroplasts or...Ch. 9.5 - Prob. 1MQCh. 9.5 - Prob. 2MQCh. 9.5 - Prob. 3MQCh. 9.5 - What is the major difference in how duplications...Ch. 9.6 - Which class of genes is rarely transferred...Ch. 9.6 - List the major mechanisms by which horizontal gene...Ch. 9.6 - How might transposons be especially important in...Ch. 9.6 - Explain how horizontally transferred genes can be...Ch. 9.7 - Prob. 1MQCh. 9.7 - Prob. 2MQCh. 9.7 - Prob. 3MQCh. 9.7 - Explain how chromosomal islands might move between...Ch. 9.8 - Prob. 1MQCh. 9.8 - How is a metagenome analyzed?Ch. 9.8 - Prob. 1CRCh. 9.9 - Prob. 1MQCh. 9.9 - Prob. 2MQCh. 9.9 - Prob. 3MQCh. 9.9 - Prob. 1CRCh. 9.10 - Why is the term proteome ambiguous, whereas the...Ch. 9.10 - Prob. 2MQCh. 9.10 - Prob. 3MQCh. 9.10 - Prob. 1CRCh. 9.11 - Prob. 1MQCh. 9.11 - What is a secondary metabolite?Ch. 9.11 - Prob. 1CRCh. 9.12 - How are single cells isolated from a mixed...Ch. 9.12 - Prob. 2MQCh. 9.12 - How can single-cell genomics be used to address...Ch. 9.13 - Prob. 1MQCh. 9.13 - Prob. 2MQCh. 9.13 - Prob. 1CRCh. 9.14 - Prob. 1MQCh. 9.14 - Prob. 2MQCh. 9.14 - Prob. 1CRCh. 9 - Apart from genome size, what factors make complete...Ch. 9 - Describe how one might determine which proteins In...Ch. 9 - The gene encoding the beta subunit of RNA...Ch. 9 - Describe how you could use systems biology to...
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