BIOLOGY
12th Edition
ISBN: 9781264839698
Author: Raven
Publisher: MCG CUSTOM
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Textbook Question
Chapter 10, Problem 4A
The metaphase to anaphase transition involves
a. new force being generated to pull the chromatids apart.
b. an increase in force on sister chromatids to pull them apart.
c. completing
d. loss of cohesion between sister chromatids.
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Students have asked these similar questions
Which of the following statements is FALSE?
A.
Centrosomes are anchor points for microtubules and are essential to form the mitotic spindle.
B.
In the eukaryotic cell cycle the cell spends much more time in the interphase than in the mitotic phase.
C.
In telophase two nuclear envelopes are fully formed and the cell splits in two via cytokinesis.
D.
The contraction of the kinetochore microtubules leads to the separation of the sister chromatids during anaphase.
E.
In the prophase chromatin condenses into X-shaped chromosomes.
The role of cohesin is toa. make chromosomes more compact.b. allow for the replication of chromosomes.c. hold sister chromatids together.d. promote the separation of sister chromatids.
Which of the following occurs during metaphase II?
A. The chromosomes align midway between spindle poles.
B. The sister chromatids separate and move toward the spindle poles.
C. Spindle microtubules attach to each sister chromatid as the nuclear envelope breaks up.
D. A nuclear envelope forms around each set of chromosomes to form four haploid nuclei.
Chapter 10 Solutions
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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- Which of the following statements about mitosis is incorrect? a. Microtubules from the spindle poles attach to the kinetochores on the chromosomes. b. In anaphase, the spindle separates sister chromatids and pulls them apart. c. In metaphase, spindle microtubules align the chromosomes at the spindle midpoint. d. Cytokinesis describes the movement of chromosomes. e. Both the animal cell furrow and the plant cell plate form at their former spindle midpoint.arrow_forwardWith regard to the process of mitosis, which of the following pairs is NOT matched correctly? a. Interphase - the cell grows, chromosomes replicate, and proteins are produced to prepare the cell to divide Ob. Prophase - chromosomes condense, and the nuclear membrane dissociates/breaks down c. Metaphase - chromosomes move toward opposite poles (or sides) of the cell d. Anaphase - sister chromatids separate e. Telophase - two distinct nuclei are formed; this is the stage immediately before cytokinesis O O Oarrow_forwardProgression through the cell cycle is dependent on both extra- and intracellular conditions. Consider the following conditions. Indicate which checkpoint (s) responds to that condition.a. The cell is large enough to divide.b. The DNA is completely copied during S phase.c. The cell is receiving positive cues from neighbors.d. The DNA is damaged.e. The cell has enough energy reserves to divide.f. Are all the sister chromatids correctly attached to spindle microtubules?arrow_forward
- Which of the following statements are true? a. after contromeres divide, chromatids are known as chromosomes b. centromeres are seperated during anaphase c. during anaphase, some microtubles become shorter and pull sister chromatids in opposite direction d. all these are truearrow_forwardThe role of the APC to get past the metaphase/ anaphase checkpoint is... Select one: a. to initiate gene expression of proteins involved in DNA replication. b. Add phosphates to the MPF to cause intermediate filaments to break down, free DNA to move in the cell. c. to add phosphate to intermediate filaments causing them to reform into the nuclear envelope d. add ubiquitin to cohesins allowing the sister chromatids to splitarrow_forwardMatch the following events with the stages in mitosis: chromosomal materials condenses to form compact chromosomes. alignment of chromosomes along the equator or plate with microtubules attached to poles sister chromatids for each chromosome split and move to opposite poles chromosomes are clustered at each of the poles and give way to cytokinesis A. telophase B. anaphase C. metaphase D. prophasearrow_forward
- Match the following terms with the correct description Telophase A. The cytoplasm of a single cell divides to form two daughter cells. Metaphase B. Condensed and highly colled chromosomes move to a central zone. Prophase C. During this phase, chromatin condenses into two Identical coples of each chromosome. V Anaphase D. Chromosomes begin to pull toward opposite ends. Cytokinesis E. The nuclear envelopes will form around each nucleus and the nucleol will reappear.arrow_forwardWhich of the following statements are true (Select all that apply) A. The nuclear envelope dissolves in the metaphase and reforms in telophase B. In prophase, chromosomes condense into compact structures C. The spindle forms and attaches to chromosomes in prometaphase D. In anaphase, each sister chromatid moves toward the spindle pole to which it is attached.arrow_forwardthe kinetochore of a metaphase chromosome is a. The ends of the chromosome that are duplicated by telomerase. b. The repeated DNA sequence at the centromere that is composed of cohesion protein. c. A protein complex that assembles on the outer surface of the chromosome to mediate attachment to the kinetochore microtubules d. The protein complext that contains cohesion and mediates attachment of the sister chromatids.arrow_forward
- A parent cell divides to form two genetically identical daughter cells in the process of mitosis. For mitosis to take place: A. the parent cell must divide its DNA in half so each daughter cell gets only the genes needed to carry out its functions. In this way, differentiation occurs. B. the parent cell must reproduce its DNA during telophase C. the parent cell must first be fertilized D. the parent cell must replicate its entire genome prior to mitosis E. crossover must be delayed until the second cell divisionarrow_forwardMatch the stage of mitosis with the correct description. a.Microtubles that are attached to each chromosome shorten, pulling the sister chromatids apart. b.The chromosomes line up single file in the middle of the cell. Sister chromatids are clearly visible in this stage. c.The chromosomes that were pulled apart reach therir respective poles. The chromosomes decondense. The nuclear envelope re-forms. The cytoplasm with organelles divides. d.Chromosomes have replicated and appear as an "X". The nuclear envelope begins to break down. The chromosomes begin to condense into individual structures. e.Centrosomes move to the opposite ends of the cell and establish two spindle poles.The nuclear envelope is completely degraded by the end of this stage. The chromosomes are completely consensed by the end of this stage. f.Not actually part of mitosis; this stage is the part of the cell cycle that is not the mitotic phase. DNA is decondensed and appears diffuse throughout the…arrow_forwardIn the image, you can see one cell that is in the process of mitosis. (Note that chromosomes are stained dark blue.) In which stage is this cell currently? A. Telophase B. Metaphase C. Interphase D. Prophase E. Cytokinesis F. Anaphasearrow_forward
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