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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During Prophase of Mitosis, chromosomes begin to condense and are fully condensed by the time the cell is in Metaphase of Mitosis. Explain how the chromatin organizes itself from the beginning of prophase to metaphase of mitosis.
A region made up of repetitive sequences in chromosomal DNA where the chromatid is attached.
Question 5 options:
chromatin
sister chromatids
centromere
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Heterochromatin and Euchromatin Have Which Different Histone modifications
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
- Less condensed region of an interplase chromosome that stains diffusely. Which one Beads on a string Heterochromatin Histone Euchromatin Octamer nucleosomearrow_forwardTrue OR False. During interphase, the chromosomes are tightly bound and visible under a light microscope.arrow_forwardTRUE OF FALSE: methylated chromatin is easily transcribedarrow_forward
- A cell has 8 chromosomes in G1 of interphase. Draw a picture of this cell with its chromosomes at the stage of etaphase of mitosis. Indicate how many DNA molecules are present at that stage.arrow_forwardDuring mitosis, the cohesin protein holds the sister chromatids together and is broken down by the ___________ protein. Shugosin protects cohesin from being broken down in the ________________ region until the anaphase stage when the sister chromatids separate. separase; centromere cyclin; centrosome H1 histone; heterochromatic shugoshin; nuclear ribobuclease; cytoplasmicarrow_forwardthe chromosomes of a yellow fever mosquito (Aedes aegypti). The species has 6 chromosome number (2n=6). Using this illustration, draw a schematic diagram of the cell division (mitosis) of the mosquito.arrow_forward
- A cell has 8 chromosomes in G1 of interphase. Draw a picture of this cell with its chromosomes at the stage of Anaphase of mitosis .Indicate how many DNA molecules are present at that stage.arrow_forwardDescriptions of Some Structures Involved in Cell Division Arrangement of stained chromosomes into homologous pairs from longest to shortest Strands of DNA tightly coiled around histones A specialized region on chromosomes where sister chromatids are joined together Condensed DNA Description Number Chromosome Answer Chromatin Answer Karyotype Answer Centromere Answerarrow_forwardDefine the following terms and their relationships to one another:A. interphase chromosomeB. mitotic chromosomeC. ChromatinD. heterochromatin e. histonesF. Nucleosomearrow_forward
- A.......... is the condensed, visible form of chromatin.arrow_forwardFor each of the following pairs of chromatin types,which is the most condensed?a. 100 Å fiber or 300 Å fiberb. 300 Å fiber or DNA loops attached to a scaffoldc. euchromatin or heterochromatind. interphase chromosomes or metaphasechromosomesarrow_forwardWhich 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.arrow_forward
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