GENETICS:ANALYSIS+PRIN.(LL)-W/ACCESS
6th Edition
ISBN: 9781260239775
Author: BROOKER
Publisher: MCG
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Textbook Question
Chapter 14, Problem 1CONQ
What is the difference between a constitutive gene and a regulated gene?
Expert Solution & Answer
Summary Introduction
To review:
The differences between a regulated gene and a consecutive gene.
Introduction:
Gene regulation is a process in which, the level of gene expression maintains and varies under different conditions. Some genes are regulated at the time of gene regulation only. There are three types of a regulatory genes which are, repressor, activator, and inducer. Some genes are expressed occasionally.
Explanation of Solution
The difference between a regulated gene and consecutive gene are as follows:
| Regulated gene | Constitutive gene |
| These genes are expressed occasionally. | These genes are usually expressed all the time in the cell. |
| The amount can vary according to the condition. | These genes are expressed at a fixed rate. |
| Structure of a regulated gene is quite complicated. | The structure is simpler. |
| Examples: enzymes in pancreas (insulin gene) | Examples: enzymes in glycolysis process |
Conclusion
Therefore, it can be concluded that there are many differences between consecutive and regulated gene. The key difference between them is, a regulated gene is expressed occasionally whereas, a consecutive gene is expressed usually, all the time in the cell.
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Chapter 14 Solutions
GENETICS:ANALYSIS+PRIN.(LL)-W/ACCESS
Ch. 14.1 - 1. A repressor is a __________ that _________...Ch. 14.1 - 2. Which of the following combinations will cause...Ch. 14.2 - 1. What is an operon?
a. A site in the DNA where...Ch. 14.2 - The binding of _______ to lac repressor causes lac...Ch. 14.2 - Prob. 3COMQCh. 14.2 - How does exposing an E. coli cell to glucose...Ch. 14.3 - When tryptophan binds to trp repressor, this...Ch. 14.3 - During attenuation, when tryptophan levels are...Ch. 14.3 - Operons involved with the biosynthesis of...Ch. 14.4 - 1. Translation can be regulated by
a....
Ch. 14.4 - Prob. 2COMQCh. 14.5 - 1. For a riboswitch that controls transcription,...Ch. 14 - 1. What is the difference between a constitutive...Ch. 14 - In general, why is it important to regulate genes?...Ch. 14 - Prob. 3CONQCh. 14 - Transcriptional regulation often involves a...Ch. 14 - An operon is repressible-a small effector molecule...Ch. 14 - Prob. 6CONQCh. 14 - 7. What is enzyme adaptation? From a genetic point...Ch. 14 - Prob. 8CONQCh. 14 - Prob. 9CONQCh. 14 - Prob. 10CONQCh. 14 - Mutations may have an effect on the expression of...Ch. 14 - 12. Would a mutation that inactivated lac...Ch. 14 - Prob. 13CONQCh. 14 - 14. As shown in Figure 14.12, four regions within...Ch. 14 - 15. As described in Chapter 13, enzymes known as...Ch. 14 - 16. The combination of a 3–4 stem-loop and a...Ch. 14 - 17. Mutations in tRNA genes can create tRNAs that...Ch. 14 - Prob. 18CONQCh. 14 - Prob. 19CONQCh. 14 - A species of bacteria can synthesize the amino...Ch. 14 - 21. Using three examples, describe how allosteric...Ch. 14 - How are the actions of lac repressor and trp...Ch. 14 - 23. Transcriptional repressor proteins (e.g., lac...Ch. 14 - Answer the following questions that pertain to the...Ch. 14 - Chapter 21 describes a blotting method known as...Ch. 14 - As described in experimental question E2 and also...Ch. 14 - Prob. 4EQCh. 14 - Explain how the data shown in Figure 14.9 indicate...Ch. 14 - Prob. 6EQCh. 14 - Lets suppose you have isolated a mutant strain of...Ch. 14 - Prob. 1QSDCCh. 14 - Prob. 2QSDC
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