Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 12.2, Problem 1TYK
Summary Introduction
Introduction:
In the presence of lactose in the environment, bacteria tend to produce lactose-using enzymes at a higher rate. However, in the absence of lactose also bacteria tend to form these enzymes, but in very small amounts. If the lac repressor is absent, there would be no control of producing the lactose-using enzymes. Therefore, either in the presence or absence of lactose in the environment, if there is no lac repressor the lactose-using enzymes will be produced continuously. This means, the lac operon is going to be expressed in any case.
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Chapter 12 Solutions
Principles of Biology
Ch. 12.1 - How does gene regulation underlie the different...Ch. 12.1 - Prob. 1TYKCh. 12.1 - The most common point of gene regulation in...Ch. 12.2 - Which genes are under the control of the lac...Ch. 12.2 - Prob. 2CCCh. 12.2 - Prob. 1BCCh. 12.2 - Prob. 1TYKCh. 12.3 - Prob. 1CCCh. 12.3 - Prob. 1TYKCh. 12.3 - Prob. 2TYK
Ch. 12.4 - Prob. 1CCCh. 12.4 - Prob. 1BCCh. 12.4 - A chromatin-remodeling complex may change the...Ch. 12.4 - Prob. 2TYKCh. 12.5 - What is the biological advantage of alternative...Ch. 12.5 - Prob. 2CCCh. 12.5 - Prob. 1TYKCh. 12.5 - Prob. 2TYKCh. 12 - Genes that are expressed at all times at...Ch. 12 - Prob. 2TYCh. 12 - Transcription factors that bind to DNA and...Ch. 12 - Prob. 4TYCh. 12 - Prob. 5TYCh. 12 - Prob. 6TYCh. 12 - Prob. 7TYCh. 12 - Prob. 8TYCh. 12 - Prob. 9TYCh. 12 - Prob. 10TYCh. 12 - What is the difference between inducible and...Ch. 12 - Transcriptional regulation often involves a...Ch. 12 - PRINCIPLES A principle of biology is that the...Ch. 12 - Discuss the advantages and disadvantages of...Ch. 12 - Prob. 2CBQ
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