EP CONNECT ONLINE ACCESS FOR BIOLOGY
20th Edition
ISBN: 9781260494655
Author: Raven
Publisher: MCG COURSE
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Textbook Question
Chapter 10, Problem 4U
What is the role of cohesin proteins in cell division?
a. They organize the DNA of the chromosomes into highly condensed structures.
b. They hold the DNA of the sister chromatids together.
c. They help the cell divide into two daughter cells.
d. They connect microtubules and chromosomes.
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What occurs during the anaphase stage of mitosis?
a.Chromosomes arrive at opposite spindle poles and become enclosed by a new nuclear envelope.
b.Chromosomes pack tightly and become attached to a newly forming spindle.
c.Sister chromatids separate and move toward opposite spindle poles.
d.All chromosomes are aligned midway between spindle poles.
Which statement about eukaryotic chromosomes entering mitosis is NOT true?a. They enter as two chromatids.b. They enter with a single centromere.c. They are soon visible under the light microscope.d. Their DNA is not yet replicated.
What is a critical event that occurs during S phase of the cell cycle?a. Cells decide whether or not to divide.b. DNA replication produces pairs of sister chromatids.c. The chromosomes condense.d. The single nucleus is divided into two nuclei.
Chapter 10 Solutions
EP CONNECT ONLINE ACCESS FOR BIOLOGY
Ch. 10.1 - Prob. 1LOCh. 10.2 - Prob. 1LOCh. 10.2 - Distinguish between homologues and sister...Ch. 10.2 - Prob. 3LOCh. 10.3 - Describe the eukaryotic cell cycle.Ch. 10.4 - Prob. 1LOCh. 10.4 - Prob. 2LOCh. 10.5 - Describe the phases of mitosis.Ch. 10.5 - Explain the importance of metaphase.Ch. 10.5 - Compare cytokinesis in plants and animals.
Ch. 10.6 - Prob. 1LOCh. 10.6 - Prob. 2LOCh. 10.7 - Prob. 1LOCh. 10.7 - Prob. 2LOCh. 10 - Binary fission in prokaryotes does not require the...Ch. 10 - Chromatin is composed of a. RNA and protein. b....Ch. 10 - What is a nucleosome? a. A region in the cells...Ch. 10 - What is the role of cohesin proteins in cell...Ch. 10 - The kinetochore is a structure that functions to...Ch. 10 - Separation of the sister chromatids occurs during...Ch. 10 - Why is cytokinesis an important part of cell...Ch. 10 - What steps in the cell cycle represent...Ch. 10 - Cyclin-dependent kinases (Cdks) are regulated by...Ch. 10 - Prob. 2ACh. 10 - Genetically, proto-oncogenes act in a dominant...Ch. 10 - The metaphase to anaphase transition involves a....Ch. 10 - The main difference between bacterial cell...Ch. 10 - In animal cells, cytokinesis is accomplished by a...Ch. 10 - Regulation of the cell cycle is very complex and...Ch. 10 - Review you knowledge of signaling pathways...Ch. 10 - Compare and contrast how mutations in cellular...
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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
- In mitosis, chromosomes separate by which specific mechanism? A. chromosomes sprout flagella and begin to swim towards the ends of the cell B. molecular motors in the kinetochore move the chromosome toward the centrioles C. centrioles attract the chromosomes by electromagnetic attraction D. centrioles begin to shorten microtubules by degrading themarrow_forwardWhat happens during telophase? A. Chromosomes are visible, nuclear envelope disappears, spindle fibers become visible B. Sister chromatids are pulled apart, daughter cells begin to from C. Chromosomes line up in the middle, microtubules attach themselves to chromosomes D. Sister chromatids reach opposite ends of the cell, nucelar envelopes begin to formarrow_forwardAt what stage in mitosis do the sister chromatids line up along the midline of the cell? a. Metaphase b. Anaphase c. Telophase d. Prophasearrow_forward
- If cells in the process of dividing are subjected to colchicine, a drug that interferes with the functioning of the spindle apparatus, at which stage will mitosis be arrested?arrow_forwardWhat happens during anaphase? A. Chromosomes line up in the middle, microtubules attach themselves to chromosomes B. Sister chromatids are pulled apart, daughter cells begin to from C. Chromosomes are visible, nuclear envelope disappears, spindle fibers become visible D. Sister chromatids reach opposite ends of the cell, nucelar envelopes begin to formarrow_forwardWhat is the function of the kinetochore during mitosis?a. It promotes the attachment of monads to each other toform a dyad.b. It is a location where a kinetochore microtubule can attachto a chromosome.c. It promotes the condensation of chromosomes duringprophase.d. Both a and b are correct.arrow_forward
- Unpacking of chromosomes and the formation of a new nuclear envelope is a characteristic of which stage of mitosis? a. prometaphase b. metaphase c. anaphase d. telophasearrow_forwardAttachment of the mitotic spindle fibers to the kinetochores is a characteristic of which stage of mitosis? a. prophase b. prometaphase c. metaphase d. anaphasearrow_forwardIn which phase of mitosis do chromosomes begin to condense and appear visible under a light microscope? 5. A. G2 B. Prometaphase C. Telophase D. Prophasearrow_forward
- The drug colchicine prevents the spindles microtubules from forming or growing. What would happen in mitosis to a cell that was given colchicine throughout mitosis? A. The chromosomes would not condense B. The nuclear envelope would not dissolve C. The chromosomes would not line up for metaphase D. The chromosomes would line up for metaphase but would not pull apart in anaphase.arrow_forwardWhat is the fundamental difference between mitosis and meiosis? A. DNA is replicated twice in meiosis, but only once in mitosis. B. The number of DNA molecules per cell nucleus is cut in half in meiosis but remains constant in mitosis. C. The number of chromosomes doubles in meiosis, whereas it stays the same in mitosis. D. Mitosis involves two cell divisions, whereas meiosis only involves one.arrow_forwardChromosomes are duplicated during what portion of the cell cycle? a. G1 phase b. S phase c. prophase d. prometaphasearrow_forward
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