EBK CONCEPTS OF GENETICS
12th Edition
ISBN: 9780134818979
Author: Killian
Publisher: YUZU
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Chapter 16, Problem 1PDQ
HOW DO WE KNOW?
In this chapter, we focused on the regulation of gene expression in bacteria. Along the way, we found man opportunities to consider the methods and reasoning by which much of this information was acquired. From the explanation given in the chapter, what answers would you propose to the following fundamental questions?
- (a) How do we know that bacteria regulate the expression of certain genes in response to the environment?
- (b) What evidence established that lactose serves as the inducer of a gene whose product is related to lactose
metabolism ? - (c) What led researchers to conclude that a repressor molecule regulates the lac operon?
- (d) How do we know that the lac repressor is a protein?
- (e) How do we know that the trp operon is a repressive control system, in contrast to the lac operon, which is an inducible control system?
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Chapter 16 Solutions
EBK CONCEPTS OF GENETICS
Ch. 16 - Even though the lac Z, Y, and A structural genes...Ch. 16 - Predict the level of genetic activity of the lac...Ch. 16 - Prob. 1CSCh. 16 - Prob. 2CSCh. 16 - Prob. 3CSCh. 16 - HOW DO WE KNOW? In this chapter, we focused on the...Ch. 16 - Prob. 2PDQCh. 16 - Contrast positive versus negative control of gene...Ch. 16 - Contrast the role of the repressor in an inducible...Ch. 16 - For the lac genotypes shown in the following...
Ch. 16 - For the genotypes and conditions (lactose present...Ch. 16 - The locations of numerous lacI and lacIS mutations...Ch. 16 - Prob. 8PDQCh. 16 - Prob. 9PDQCh. 16 - Predict the effect on the inducibility of the lac...Ch. 16 - Erythritol, a natural sugar abundant in fruits and...Ch. 16 - Prob. 12PDQCh. 16 - Prob. 13PDQCh. 16 - Neelaredoxin is a 15-kDa protein that is a gene...Ch. 16 - The creation of milk products such as cheeses and...Ch. 16 - Both attenuation of the trp operon in E. coli and...Ch. 16 - Prob. 17PDQCh. 16 - Prob. 18ESPCh. 16 - In a theoretical operon, genes A, B, C, and D...Ch. 16 - A bacterial operon is responsible for the...Ch. 16 - A marine bacterium is isolated and shown to...Ch. 16 - Prob. 22ESPCh. 16 - Prob. 23ESP
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