Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 10.5, Problem 3COMQ
Summary Introduction
Introduction:
In eukaryotic cells, the chromatin containing nucleosomes form a more compact structure. Nucleosomes are packed into more complex and compact structures in the chromatid and this further helps to make the chromosomes. The nucleus is consists of DNA (deoxyribonucleic acid) which is wrapped around the proteins that are lined together to form chromatids.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
With regard to the 30-nm fiber, a key difference between thesolenoid and zigzag models isa. the solenoid model suggests a helical structure.b. the zigzag model suggests a more irregular pattern ofnucleosomes.c. the zigzag model does not include nucleosomes.d. both a and b are correct.
a. Provide the a–c cell projection for the space group,
b. including a motif Provide all of the general positions
c. Provide any special positions for this space group
The nucleus
a) has a single membrane and compartmentalizes the genetic material
b) has a double membrane joined by nuclear pores, is continuous with the endoplasmic reticulum membrane, and compartmentalizes the nuclear genetic material
c) has a double membrane joined by nuclear pores, is continuous with the smooth endoplasmic reticulum membrane only, and compartmentalizes the nuclear genetic material
d) None of these are accurate
Chapter 10 Solutions
Genetics: Analysis and Principles
Ch. 10.1 - 1. A bacterial chromosome typically contains
a. a...Ch. 10.2 - Mechanisms that make the bacterial chromosome more...Ch. 10.2 - 2. Negative supercoiling may enhance activities...Ch. 10.2 - 3. DNA gyrase
a. promotes negative supercoiling....Ch. 10.3 - 1. The chromosomes of eukaryotes typically contain...Ch. 10.4 - Which of the following is an example of a...Ch. 10.5 - What are the components of a single nucleosome? a....Ch. 10.5 - 2. In Noll’s experiment to test the...Ch. 10.5 - Prob. 3COMQCh. 10.5 - Prob. 4COMQ
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...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Why do we utilize micropipettes when dispensing volumes in cell/molecular biology labs? a They are very technical pieces of equipment that require training to use. b Most often we need to move small volumes reliably and repeatedly. c Tips must be added to allow for the proper movement of the desired volume. d Each pipette is capable of giving a ten-fold difference in volume with appropriate tips.arrow_forwardEarly researchers experimented with nucleoplasmin and demonstrated that proteins targeted to the nucleus have a specific nuclear localization sequence. Remembering this experiment, which of the following statements is true? a. The core nucleoplasmin fragment ended up in the nucleus. b. nucleoplasmin does not require a nuclear localization sequence to enter the nucleus c. The tail nucleoplasmin fragment has the nuclear localization sequence d. Nuceloplasmin was fragmented and the parts were injected into the same cellarrow_forwardA typical eukaryotic chromosome found in humans contains about100 million bp. one DNA base pair has alinear length of 0.34 nm.A. What is the linear length of the DNA in a typical human chromosome in micrometers?B. What is the linear length of a 30-nm fiber of a typical humanchromosome?C. Based on your calculation in part B, would a typical humanchromosome fit inside the nucleus (with a diameter of 5 µm) ifthe 30-nm fiber was stretched out in a linear manner? If not,explain how a typical human chromosome fits inside thenucleus during interphase.arrow_forward
- Nitrogen bases pair with bases that are _____. a. Available b. Identical c. Complimentary d. None of the above Which of the following is not present in the abdominal cavity? a. Spleen b. Stomach c. Rectum d. Liver Based on the locations of centromeres, what type describes a centromere locates closely to one of the ends? a. Telocentric b. Acrocentric c. Submetacentric d. Metacentricarrow_forwardThe conversion of euchromatin into heterochromatin involvesa. the formation of more nucleosomes.b. the formation of less nucleosomes.c. a greater compaction of loop domains.d. a lesser compaction of loop domains.e. both a and c.arrow_forwardb ) Describe the contribution of Griffith , Avery et al . , Hershey & Chase , and Watson and Crick in the field of genetics . You are characterizing a newly discovered organism . You have noticed that the organism grows on two carbon sources - sucrose and mannitol . Whenever you add both sugars to the medium , sucrose will be completely metabolized before mannitol . a ) What is this growth pattern called ? b ) Describe a possible growth curve of sequential metabolism of the sugars . arrow_forward
- Biologists have long been interested in the effects of radiation on cells. In one experiment, researchers examined the effect of radium on mitosis of chick embryo cells growing in culture. A population of experimental cells was examined under the microscope for the number of cells in telophase (as a measure of mitosis occurring) before, during, and after exposure to radium. The results are shown in the Figure. What is the effect of radium exposure on mitosis? Source: R. G. Canti and M. Donaldson. 1926. The effect of radium on mitosis in vitro. Proceedings of the Royal Society of London, Series B, Containing Papers of a Biological Character 100:413419.arrow_forwardHistones form more accessible chromatin because of Select one: a. Reduced electrostatic attraction between the histone and the negatively charged DNA backbone b. Increased electrostatic attraction between the histone and the negatively charged DNA backbone c. Reduced covalent bonding between the histone and the negatively charged DNA backbone d. Increased covalent bonding between the histone and the negatively charged DNA backbonearrow_forwardIn a particular region of the genome of a certain bacterium, one DNA strand is transcribed to give rise to an mRNA for protein A and the other DNA strand is transcribed to give rise to an mRNA for protein B. a) Would there be any problem in expressing the two genes? 2. b) If a mutation occurred to affect the structure of protein A, what would you observe in the structure of protein B?arrow_forward
- The average human chromosome contains about 1 x 108 bp of DNA. (a) If each base pair has a mass of about 660 daltons and there are about 2 g of protein (histones plus nonhistones) per gram of DNA, how much does such a chromosome weigh (in grams)? (b) If the DNA were extended, how long would it be? (c) An actual chromosome is about 5 mm long. What is the approximate compaction ratio? (d) You have about 4x 1012 cells in your body. If you have 46 chromosomes in each cell, what is the approximate extended length of all of your DNA? For comparison, the distance from the earth to the sun is about 1.5x108 km.arrow_forwardWhich is the largest among the followings? a. Nucleotide b. Nitrogenous base c. Phosphate d. Carbon Based on the locations of centromeres, what type describes a centromere locates slightly away from the mid-point so that the two arms are unequal? a. Telocentric b. Acrocentric c. Submetacentric d. Metacentricarrow_forwarddiscuss the use of linkage maps, bionano optical mapping and Hi-C for assembly. scaffolding a detailed answer is requiredarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Biomolecules - Protein - Amino acids; Author: Tutorials Point (India) Ltd.;https://www.youtube.com/watch?v=ySNVPDHJ0ek;License: Standard YouTube License, CC-BY