Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 10, Problem 7RQ
Identical copies of chromatin held together by cohesin at the centromere are called.______
- histones
- nucleosomes
- chromatin
- sister chromatids.
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Chapter 10 Solutions
Biology 2e
Ch. 10 - Figure 10.6 Which of the following is the correct...Ch. 10 - Figure 10.13 Rb and other proteins that negatively...Ch. 10 - Figure 10.14 Human papillomavirus can cause...Ch. 10 - A diploid cell has ________ the number of...Ch. 10 - An organism s traits are determined by the...Ch. 10 - The first level of DNA organization in a...Ch. 10 - Identical copies of chromatin held together by...Ch. 10 - S. Chromosomes are duplicated during what stage of...Ch. 10 - Which of the following events does not occur...Ch. 10 - The mitotic spindles arise from which cell...
Ch. 10 - Attachment of the mitotic spindle fibers to the...Ch. 10 - Unpacking of chromosomes and the formation of a...Ch. 10 - Separation of the sister chromatids is a...Ch. 10 - The chromosomes become visible under a light...Ch. 10 - The fusing of Golgi vesicles at the metaplhase...Ch. 10 - At which of the cell-cycle checkpoints do external...Ch. 10 - What is the main prerequisite for clearance at the...Ch. 10 - If the M checkpoint is not cleared, what stage of...Ch. 10 - Which protein is a positive regulator that...Ch. 10 - Many of the negative regulator proteins of the...Ch. 10 - Which negative regulatory molecule can trigger...Ch. 10 - are changes to the order of nucleotides in a...Ch. 10 - A gene that codes for a positive cell-cycle...Ch. 10 - A mutated gene that codes for an altered version...Ch. 10 - Which molecule is a Cdk inhibitor that is...Ch. 10 - Which eukaryotic cell-cycle event is missing in...Ch. 10 - FtsZ proteins direct the formation of a...Ch. 10 - Compare and contrast a human somatic cell to a...Ch. 10 - What is the relationship between a genome,...Ch. 10 - Eukaryotic chromosomes are thousands of times...Ch. 10 - Briefly describe the events that occur in each...Ch. 10 - Chemotherapy drugs such as vincristine (derived...Ch. 10 - Describe the similarities and differences between...Ch. 10 - List some reasons why a cell that has just...Ch. 10 - What cell-cycle events will be affected in a cell...Ch. 10 - Describe the general conditions that must be met...Ch. 10 - Compare and contrast the roles of the positive...Ch. 10 - What steps are necessary for Cdk to become fully...Ch. 10 - Rb is a negative regulator that blocks the cell...Ch. 10 - Outline the steps that lead to a cell becoming...Ch. 10 - Explain the difference between a proto-oncogene...Ch. 10 - List the regulatory mechanisms that might be lost...Ch. 10 - ______ can trigger apoptosis if certain cell-cycle...Ch. 10 - Name the common components of eukaryotic cell...Ch. 10 - Describe how the duplicated bacterial chromosomes...
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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_forwardNucleolus is present in _______________of cell cycle and ________________ of mitosis.arrow_forwardFill in the blank: _______________ are structures formed of DNA wrapped around histone proteins that are visible and only seen during cell division (eg. mitosis)arrow_forward
- The cisternal space of ER is continuous with prenuclear space between the two membranes of the nuclear envelope and can communicate with the internals spaces of the Golgi complex and lysosome by means of _____________ that shuttle between these structures. Which of the following experimental observations would suggest that chromosomes move by polymerization of tubulin subunits?arrow_forwardRe-write the following statement to make it true: "Mitotic CDK is absent when the cell is in interphase and is present only during mitosis."arrow_forwardWhy interphase is called prepering phase?arrow_forward
- Somatic cells from two different people usually contain ____________________. identical RNA profiles diploid nuclei different numbers of autosomes equal numbers of mitochondriaarrow_forwardThe phases of mitosis are shown in Figure 6.4. Mitosis is the type of nuclear division that occurs when an animal or plant grows larger and when injury heals. Two daughter cells result because there is only one round of division, and it keeps the chromosome number constant (same as the parent cell). The prophase cell in Figure 6.4 has the same number of chromosomes as the telophase nuclei in Figure 6.4. Explain the different appearance of the chromosomes.arrow_forwardMitosis (Name the cell division phase on the line.) DNA and centrosomes are replicated. Name: Chromatin condenses and supercoils to form dense chromosomes. Since DNA was previously replicated, the chromosomes are now present as paired sister chromatids. Centrosomes move to opposite sides of the nucleus and will define the orientation of the division. Name: DOarrow_forward
- The histone proteins help package DNA into ___________;the nonhistone proteins function in chromosomestructure, replication, and segregation, as well as in thecontrol of gene expression.arrow_forwardThese types of proteins are responsible for all the following events during cell division: movement of "chromosomes" to poles, sliding of non-kinetochore microtubules pushing the two ends of the cell apart, and also the production of the cleavage furrow during cytokinesis. They are called _ _ (two words)arrow_forwardThe stage of mitosis when chromosomes condense to form rod-shaped structures visible under the microscope is called metaphase prophase anaphase interphase O telophasearrow_forward
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