BIOLOGY (LL)
5th Edition
ISBN: 9781264115495
Author: BROOKER
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 11, Problem 9TY
A nucleosome is
- a. a dark-staining body composed of RNA and proteins found in the nucleus.
- b. a protein that helps organize the structure of chromosomes.
- c. another word for a chromosome.
- d. a structure composed of DNA wrapped around eight histones.
- e. the short arm of a chromosome.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
DNA that makes up Chromosomes is complexed with proteins and is called Chromatin. One of the most important proteins associated with DNA that helps to organize it in the nucleus is called:
A. Euchromatin.
B. Heterochromatin.
C. Histones.
D. Centromeres.
In a nucleosome, what is the DNA wrapped around?
A. mRNA
B. Nucleolus protein.
C. Ribosomes.
D. Polymerase molecules.
E. Histones
The form of DNA that contains genes that are actively beingtranscribed is calleda. histones.b. telomeres.c. heterochromatin.d. euchromatin.
Chapter 11 Solutions
BIOLOGY (LL)
Ch. 11.1 - Prob. 1CSCh. 11.1 - Prob. 1EQCh. 11.1 - Prob. 2EQCh. 11.1 - CoreSKILL In the experiment of Avery, MacLeod,...Ch. 11.2 - Prob. 1CCCh. 11.2 - Prob. 2CCCh. 11.2 - Core Skill: Modeling The goal of this modeling...Ch. 11.2 - Prob. 2CSCh. 11.3 - If this experiment was conducted for four rounds...Ch. 11.4 - Molecular Mechanism of DNA Replication Concept...
Ch. 11.4 - Prob. 2CCCh. 11.4 - Prob. 3CCCh. 11.4 - Prob. 4CCCh. 11.5 - Prob. 1CCCh. 11.5 - Prob. 1CSCh. 11 - Why did researchers initially believe that the...Ch. 11 - Prob. 2TYCh. 11 - Which of the following equations is accurate...Ch. 11 - Prob. 4TYCh. 11 - Which of the following statements about the...Ch. 11 - Meselson and Stahl were able to demonstrate...Ch. 11 - During replication of a DNA molecule, the daughter...Ch. 11 - Prob. 8TYCh. 11 - A nucleosome is a. a dark-staining body composed...Ch. 11 - The conversion of euchromatin into heterochromatin...Ch. 11 - What are the four key criteria that the genetic...Ch. 11 - A double-stranded DNA molecule contains 560...Ch. 11 - Prob. 3CQCh. 11 - Prob. 1COQCh. 11 - CoreSKILL How might you provide evidence that DNA...
Additional Science Textbook Solutions
Find more solutions based on key concepts
1. The correct sequence of levels forming the structural hierarchy is
A. (a) organ, organ system, cellular, che...
Human Anatomy & Physiology (Marieb, Human Anatomy & Physiology) Standalone Book
Identify each of the following reproductive barriers as prezygotic or postzygotic. a. One lilac species lives o...
Campbell Essential Biology with Physiology (6th Edition)
Why is it unlikely that two neighboring water molecules would be arranged like this?
Campbell Biology (10th Edition)
What were the major microbiological interests of Martinus Beijerinck and Sergei Winogradsky? It can be said tha...
Brock Biology of Microorganisms (15th Edition)
Describe the role and impact of microbes on the earth.
Microbiology Fundamentals: A Clinical Approach - Standalone book
Police Captain Jeffers has suffered a myocardial infarction. a. Explain to his (nonmedically oriented) family w...
Human Physiology: An Integrated Approach (8th Edition)
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
- The regions of chromosomes that form heterochromatin a. contain highly expressed genes.b. contain few genes.c. are associated with the nuclear envelope.d. are abundant inarrow_forwardWhich of the following is true of chromatin inprokaryotes?a. Bacterial chromosomes are not organized intochromatin.b. It is found in the nucleus.c. It is found in the cytoplasm.d. It is very similar to chromatin in eukaryotes.arrow_forwardThe structural unit of the eukaryotic genome is called a(n): a. nucleosome b. histone c. chromatin d. exonarrow_forward
- What is the difference between heterochromatin and euchromatin in terms of: A. Gene expression B. Dye staining C. Nuclease sensitivity D. Level of acetylation E. Chromosome territory locationarrow_forwardDefine the following terms and their relationships to one another:A. interphase chromosomeB. mitotic chromosomeC. ChromatinD. heterochromatin e. histonesF. Nucleosomearrow_forwardA. Instead of having a linear chromosome, bacteria have a circular chromosome. B. Organisms living in fresh water environment need to use to remove water out of the cell so they don't burst. C. is covered in a silica test which is the main component of making glass. D. Name the structure labeled as "d".arrow_forward
- Histones 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_forwardThe chromatin is composed of... a. DNA (10%), RNA (30%), and histone proteins (60%)b. DNA (30%), RNA (30%), and histone proteins (40%)c. DNA (60%), RNA (30%), and histone proteins (10%)d. DNA (30%), RNA (10%), and histone proteins (60%)e. none of the abovearrow_forwardWhich of the following does not contribute to genetic variation in sexually reproducing species? O a. random fertilization O b. independent assortment Oc cytokinesis O d. none of the answers are correct none of the answers are correct O e. crossing over All of the following correctly describe the sodium-potassium pump EXCEPT: O a. A total of five binding sites are present in the sodium-potassium pump O b. Potassium ions are pumped into the cell, where they are present in lower concentration than the extracellular fluid O c. The transport proteins will undergo some conformational changes O d. Molecules are pumped from low concentration to high concentration O e. Energy is required for the process to take placearrow_forward
- Determine whether each statement isTRUE or FALSE.a. In eukaryotic chromosomes, DNA replication begins at a single point in the chromosome and proceeds in two directions.b. The bonds between the sugars and phosphates are broken during DNA replication.c. The elongation of the leading strand during DNA synthesis progresses away from the replication fork.d. Each DNA molecule resulting from replication has one original strand and one new strand.e. The difference in how the leading and lagging strands of DNA molecules are synthesized is due to DNA polymerase adding new nucleotides only to the 3’ end of a growing strand, and the strands are anti-parallel.arrow_forwardLoosening the chromatin structure occurs because of Select one: a. Lysine methylation b. Lysine acetylation c. Lysine phosphorylation d. Lysine sumoylationarrow_forwardWhich of the following statements about chromosomes and centromeres is INCORRECT?(choose the letter that corresponds to the answer) A. A centromere is a constriction visible on metaphase chromosomes. B. Centromere position is a useful marker for dividing chromosomes into karyotype groups. C. Centromeric protein-A replaces histone H3 in nucleosomes found at the centromere. D. Acentric and dicentric chromosomes are genetically stable chromosomes.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Biology - Intro to Cell Structure - Quick Review!; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=vwAJ8ByQH2U;License: Standard youtube license