Genetics: Analysis and Principles
Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Chapter 10, Problem 1CONQ
Summary Introduction

To review:

The differences between nucleoids in bacteria and the nucleus in eukaryotes with respect to cellular membranes.

Introduction:

All living forms have nucleic acids, which act as carriers of genetic information. This genetic material is compressed into chromosomes so as to accommodate the entire length into a small cell.

Expert Solution & Answer
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Explanation of Solution

The bacterial chromosome is folded and compressed to be able to fit inside a cell. This highly-folded chromosome is referred to as a nucleoid. The differences between the nucleoid in bacteria and the nucleus in eukaryotes have been tabulated below:

Bacterial nucleoid Eukaryotic nucleus
It does not have a membrane. It is enclosed within a membrane.
The DNA (deoxyribonucleic acid) is in contact with the cytoplasmic content. The DNA is isolated from the contents of the cytoplasm.
Conclusion

Therefore, it can be concluded that a nucleoid comprises a compressed chromosome and is not enclosed in a membrane while the eukaryotic nucleus has a membrane, which turns it into an organelle.

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Chapter 10 Solutions

Genetics: Analysis and Principles

Ch. 10.6 - Prob. 1COMQCh. 10.6 - 2. The role of cohesin is to a. make chromosomes...Ch. 10 - Prob. 1CONQCh. 10 - Prob. 2CONQCh. 10 - 3. Describe the mechanisms by which bacterial DNA...Ch. 10 - Why is DNA supercoiling called supercoiling rather...Ch. 10 - Prob. 5CONQCh. 10 - Prob. 6CONQCh. 10 - Prob. 7CONQCh. 10 - Prob. 8CONQCh. 10 - Prob. 9CONQCh. 10 - 10. What is the function of a centromere? At what...Ch. 10 - Prob. 11CONQCh. 10 - 12. Describe the structures of a nucleosome and a...Ch. 10 - Beginning with the G1 phase of the cell cycle,...Ch. 10 - Draw a picture depicting the binding between the...Ch. 10 - 15. Compare heterochromatin and euchromatin. What...Ch. 10 - 16. Compare the structure and cell localization of...Ch. 10 - 17. What types of genetic activities occur during...Ch. 10 - Lets assume the linker region of DNA averages 54bp...Ch. 10 - 19. In Figure 10.12, what are we looking at in...Ch. 10 - 20. What are the roles of the core histone...Ch. 10 - A typical eukaryotic chromosome found in humans...Ch. 10 - Which of the following terms should not be used to...Ch. 10 - Discuss the differences between the compaction...Ch. 10 - 24. What is an SMC complex? Describe two...Ch. 10 - Two circular DNA molecules, which we can call...Ch. 10 - 2. Let’s suppose you have isolated DNA from a cell...Ch. 10 - 3. We seem to know more about the structure of...Ch. 10 - In Nolls experiment of Figure 10.11, explain where...Ch. 10 - When chromatin is treated with a salt solution of...Ch. 10 - 6. Let’s suppose you have isolated chromatin from...Ch. 10 - If you were given a sample of chromosomal DNA and...Ch. 10 - Consider how histone proteins bind to DNA and then...Ch. 10 - In Chapter 23, the technique of fluorescence in...Ch. 10 - Bacterial and eukaryotic chromosomes are very...Ch. 10 - The prevalence of highly repetitive sequences...Ch. 10 - Discuss and make a list of the similarities and...
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