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Concepts of Genetics 3rd Edition

Concepts of Genetics (3rd Edition)

Book Edition3rd Edition
Author(s)Brooker
ISBN9781259879906
PublisherMcGraw-Hill, Inc.
SubjectBiology
Section 16.1: OVERVIEW OF TRANSCRIPTIONAL REGULATION
Comprehension Questions
Section 16.2: REGULATION OF THE lac OPERON
Section 16.3: REGULATION OF THE trp OPERON
Comprehension Questions
Section 16.4: TRANSLATIONAL AND POSTTRANSLATIONAL REGULATION
Concept Check
Comprehension Questions
Section 16.5: RIBOSWITCHES
Concept Check
Comprehension Questions

Chapter 16, Section 16.1, Concept Check, Exercise 01

Page 356

Here is a tip:

All proteins are not required at all times by the cell.

Explanation

The expression of a gene involves the transcription of the gene, followed by translation. Both are endergonic processes and use a lot of cellular raw material. Gene regulation allows the cell to monitor these processes such that these proteins can be produced in whatever quantity when required, and the expression can be turned down or off when the gene products are not needed.

Verified Answer

Regulation allows the cell to optimize the use of energy and resources. The protein can be produced whenever needed and in whatever quantity required. At other times, the cell need not waste energy and resources toward this process.

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