Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 9.6, Problem 2TYK
Which of the following is the correct order for the progression of chromatin compaction seen in metaphase chromosomes?
- radial loop domains, further compaction of radial loop domains, nucleosomes, 30-nm fiber
- radial loop domains, further compaction of radial loop domains, 30- nm fiber, nucleosomes
- nucleosomes, 30-nm fiber, radial loop domains, further compaction of radial loop domains
- 30-nm fiber, nucleosomes, radial loop domains, further compaction of radial loop domains
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Which of the following statements is TRUE?
None of these are TRUE
Interphase chromosomes are loosely compacted, overlapping, and intertwined with
each other within the nucleus.
Radial loops in the condensing chromosome are formed due to interactions between
30 nm fibers and the scaffolding proteins of the nuclear matrix - producing the 300 nm
fiber of the chromosome
Interphase chromosomes are loosely compacted and do not associate with histones
until the cell is preparing to divide.
Interphase chromosomes are also known as euchromatin. Condensed, metaphase
chromosomes are also known as heterochromatin.
Which of the following statements is TRUE?
O Interphase chromosomes are loosely compacted, overlapping, and
intertwined with each other within the nucleus.
O Interphase chromosomes are loosely compacted and do not associate
with histones until the cell is preparing to divide.
O Interphase chromosomes are also known as euchromatin. Condensed,
metaphase chromosomes are also known as heterochromatin.
O Radial loops in the condensing chromosome are formed due to
interactions between 30 nm fibers and the scaffolding proteins of the
nuclear matrix - producing the 300 nm fiber of the chromosome
O None of these are TRUE
Which of the following statements about heterochromatin is FALSE?
It contains many repeated sequences, but few actively transcribed genes.
It remains condensed through most of the cell cycle.
It is found next to the centromeres and on short arms in human chromosomes.
It is enriched for transposable elments
Histone proteins in heterochromatin are heavily acetylated, reducing their affinity for the DNA backbone.
Chapter 9 Solutions
Principles of Biology
Ch. 9.1 - Look ahead to Figure 17.10. How does bacterial...Ch. 9.1 - Prob. 1TYKCh. 9.2 - Prob. 1CCCh. 9.2 - Prob. 2CCCh. 9.2 - Prob. 3CCCh. 9.2 - A nucleotide composed of deoxyribose, phosphate,...Ch. 9.2 - Prob. 2TYKCh. 9.2 - Prob. 3TYKCh. 9.3 - Prob. 1TYKCh. 9.3 - To determine the structure of DNA, Watson and...
Ch. 9.4 - Prob. 1CCCh. 9.4 - Prob. 1TYKCh. 9.4 - Prob. 2TYKCh. 9.5 - Prob. 1CCCh. 9.5 - Prob. 1TYKCh. 9.5 - Prob. 2TYKCh. 9.5 - Prob. 3TYKCh. 9.6 - Prob. 1CCCh. 9.6 - A nucleosome is composed of 146 bp or 147 bp of...Ch. 9.6 - After they have replicated and become compacted in...Ch. 9.6 - Prob. 1BCCh. 9.6 - Which of the following is the correct order for...Ch. 9 - What is/are the main component(s) of chromosomes?...Ch. 9 - Prob. 2TYCh. 9 - Prob. 3TYCh. 9 - Prob. 4TYCh. 9 - Of the following statements, which is correct when...Ch. 9 - Prob. 6TYCh. 9 - Prob. 7TYCh. 9 - Prob. 8TYCh. 9 - Prob. 9TYCh. 9 - The conversion of euchromatin into heterochromatin...Ch. 9 - What are the four criteria that the genetic...Ch. 9 - What are the key features of DNA that allow it to...Ch. 9 - PRINCIPLES A principle of bioloy is that structure...Ch. 9 - Prob. 1CBQCh. 9 - Prob. 2CBQ
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
- Discuss the levels of chromosomal organization with reference to the following terms: a. nucleotide b. DNA double helix c. histones d. nucleosomes e. chromatinarrow_forwardYou would expect to find chromatin in which form during the Gap2 phase of the cell cycle? Replicated heterochromatin Chromatin in the same form as during metaphase of meiosis. Chromatin in the same form as during metaphase of mitosis Un replicated heterochromatin Replicated euchromatinarrow_forwardThe term heterochromatin refers to heavily condensed regions of chromosomes that are largely devoid of genes. Since few genes exist there, these regions almost never decondense for transcription. At what point during the cell cycle would expect to observe decondensation of heterochromatic regions? Why?arrow_forward
- Which of the following diagrams correctly depicts the orientation of microtubules during metaphase of mitosis? A B C OA I (-) (+) (+) (+) (+) (+) (+) (+) (+)50 (+) == (-) XX [(+) (-) E (-) J ++) (+) - (+) (-) (+) 11 15+ E (+) (-) 50 at &&05 (-) 50) (+) (-) (-) (+) (-) D E (+) (+) (+) D (-) St (+) coff (+) (-) (+) (+) (-) (-) (+) (-) (-) affere XXX (-)- (-) ++) (+) (-) (-) (-) (-) Karrow_forwardWhat is the relation between the concepts of chromatin andchromosome? Are euchromatin and heterochromatin part of chromosomes?arrow_forwardWhat is the difference between the metaphase chromosome and telophase chromosome? Metaphase chromosomes exist as single chromatids; meanwhile, telophase chromosomes appear as sister chromatids Metaphase chromosomes materialize as homologous chromosome; on one hand, telophase chromosomes are structurally bonded with its homologue. Metaphase chromosomes exist as sister chromatids; meanwhile, telophase chromosomes appear as single chromatids Metaphase chromosomes are structurally bonded with its homologue; on the other hand, telophase chromosomes do not materialize homologous chromosomes.arrow_forward
- Across framework for chrom 11 osome movement during cell division 14 15 17 19.) the stage of çell division in which the cytoplasm divides to fórm two daughter cells 8. 9- 10 20.) chromosomes that are similar in morphology and genetic costitution 11 12 13 14 Down 15 16 14.) repeating units of chromatin structure, each consisting of a length of DNA wound around a complex of eight histone molecules 17 18 19 20 17.) The division of the cell nucleus resulting in two daughter nuclel, each with the samearrow_forwardMatch the type of chromatin with the chromosome structure or region. chromatin of telomeres v Choose... facultative heterochromatin constitutive heterochromatin chromatin of centromeres eychromatinarrow_forwardExplain the following terms: Non-histone Chromosomal (NHC) proteins, euchromatin & Heterochromatin.arrow_forward
- 1 3 4 Here is a replication fork during S phase of the cell cycle. DNA strands are labeled 1-4. After mitosis and cytokinesis is complete, One daughter cell will have strands 18&2, another will have strands 3&4 One cell will have 1&3, the other will have 2&4 Each of the strands (1-4) will be in a different cell. All four strands will end up in the same cell, and the other cell will have the complementary strands. Both A and B are equally likely.arrow_forwardHOW DO WE KNOW? how chromosomes are distributed during cell division, both in dividing somatic cells (mitosis) and in gamete- and spore-forming cells (meiosis). We found many opportunities to consider the methods and reasoning by which much of this information was acquired. How do we know that mitotic chromosomes are derivedfrom chromatin?arrow_forwardThe interphase is the part of the eukaryotic cell cycle that is most transcriptionally active. Gene regulation during this phase involves changes in the chromatin. a) What is chromatin? b) How can the chromatin structure change?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
The Cell Cycle and its Regulation; Author: Professor Dave Explains;https://www.youtube.com/watch?v=eqJqhA8HSJ0;License: Standard YouTube License, CC-BY
Cell Division - Mitosis and Meiosis - GCSE Biology (9-1); Author: Mr Exham Biology;https://www.youtube.com/watch?v=w7vp_uRA8kw;License: Standard YouTube License, CC-BY