Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Textbook Question
Chapter 10, Problem 10TYU
CONNECT Does the DNA content of the cell change from the beginning of interphase to the end of interphase? Does the number of chromosomes change? Explain.
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Which phase is described below?
The chromosomes condense, Each is made of two sister chromatids,(looks) like an "X" Each sister is a clone, the closest of kin, And acentromere connects them like siamese twinsThe nucleolus disappears it melts away, as the cell takes a ribosomeproduction holiday, the centrosomes separate, start spindle formationfor separating chromatids and cell elongation.
Describe the movements of chromosomes and the status of microtubule spindle during interphase, prophase, metaphase, anaphase and telophase?
Which of the following best describes the difference between interphase and mitosis?
a) During interphase, DNA has a loose structure that condenses during mitosis.
b) During interphase, histones help compact DNA into chromosomes. And once mitosis starts, histones are destroyed.
c) During interphase, DNA is tightly packed into chromosomes that uncoil once mitosis starts.
d) During interphase, DNA is packed as chromosomes. And during mitosis, DNA is called chromatin.
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Chapter 10 Solutions
Biology (MindTap Course List)
Ch. 10.1 - Discuss the significance of chromosomes in terms...Ch. 10.1 - Explain how DNA is packed into chromosomes in...Ch. 10.1 - What are the informational units on chromosomes...Ch. 10.1 - How is the large discrepancy between DNA length...Ch. 10.2 - Identify the stages in the eukaryotic cell cycle...Ch. 10.2 - Describe the structure of a duplicated chromosome,...Ch. 10.2 - Prob. 5LOCh. 10.2 - Prob. 1CCh. 10.2 - What are the stages of mitosis, and what happens...Ch. 10.3 - Prob. 6LO
Ch. 10.3 - What are cell-cycle checkpoints?Ch. 10.3 - Prob. 2CCh. 10.4 - Prob. 7LOCh. 10.4 - Distinguish between haploid and diploid cells, and...Ch. 10.4 - Prob. 9LOCh. 10.4 - 10.2 What are the stages of mitosis, and what...Ch. 10.4 - Prob. 1CCh. 10.4 - Prob. 2CCh. 10.4 - Can haploid cells divide by mitosis? by meiosis?Ch. 10.5 - Prob. 11LOCh. 10.5 - Prob. 1CCh. 10.5 - Prob. 2CCh. 10 - A nucleosome consists of (a) DNA and scaffolding...Ch. 10 - Test Your Understanding 2. At which of the...Ch. 10 - In a cell at __________, each chromosome consists...Ch. 10 - The molecular tether that links sister chromatids...Ch. 10 - In an animal cell at mitotic metaphase, you would...Ch. 10 - A diploid nucleus at early mitotic prophase has...Ch. 10 - You would expect to find a synaptonemal complex in...Ch. 10 - A chiasma links a pair of (a) homologous...Ch. 10 - VISUALIZE Sketch a mitotic prophase chromosome and...Ch. 10 - CONNECT Does the DNA content of the cell change...Ch. 10 - Fill out the following table for a cell with 5...Ch. 10 - Fill out the following table for a diploid cell...Ch. 10 - In questions 13 and 14, decide whether each is an...Ch. 10 - Prob. 14TYUCh. 10 - EVOLUTION link How does mitosis provide evidence...Ch. 10 - Prob. 16TYU
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- Metaphase- Mitosis a) Chromosomes line up at the equator of the cell. b) One spindle fiber of the very conspicuous spindle system attaches to the centromere of each chromosome.arrow_forwardWhich of the following statements best describes the process of phase separation in cells? Proteins can assemble as liquid droplets that are not bounded by a membrane in either the cytoplasm or nucleus A protein can separate into different organelles dependent on the phase of the cell cycle Proteins that are assembled in one phase of the cell cycle and degraded in the next are said to undergo phase separation Signal sequences can target proteins assembled in the cytoplasm into the lumen of the endoplasmic reticulumarrow_forwardYou discover a substance that prevents the motor protein in a centromere from attaching to a spindle fiber. What would be a consequence of adding this substance to a cell during mitosis? Group of answer choices A) the chromatin would not coil up to form condensed chromosomes B) the nuclear membrane would not break down C) sister chromatids would not form D) sister chromatids would fail to separatearrow_forward
- Define the following: chromosome, centromere, centrosome, kinetochore, mitosis, cytokinesis, syncytium.arrow_forwardMetaphase to Anaphase Are all the chromosomes attached to the spindle and aligned properly at the equator of the cell?arrow_forwardProphase: Prophase begins the M phase of the cell cycle, the period during which a cell actually divides. In prophase, the nucleolus will disappear and the chromatin will begin to coil into compact, distinct chromosomes. Why might the condensing of chromatin be necessary?arrow_forward
- Are replicated chromosomes are positioned on the cell’s equator anaphase, metaphase, or telophase? Are nuclear envelopes form around chromosomes and spindle fibers break down anaphase, metaphase, or telophase?arrow_forwardExplain what happens at each phase of cell cycle: -DNA replication (when, where, how? Use terms such as DNA polymerase, complimentary base pairs) -Interphase (G1, S, G2) -Mitosis (overall goal of prophase, metaphase, anaphase, telophase, cytokinesis)arrow_forwardName the phases of the cell cycle. b) During which phases are the chromosomes and then the cytoplasm split, respectively? c) Describe one mechanism that is used to regulate the cell cycle.arrow_forward
- 1) what is meant by “there is no such thing as a typical cell?” 2) which part of the cell cycle does the cell spend the least amount of time in? Why do u think that is? 3) why would a cell ever want to destroy itself? 4) how long does a cell live before it undergoes mitosis? 5) if cells can constantly replace themselves, why is a heart attack (which kills cardiac muscle cells) so devastating? 6) what type of cells never undergo mitosis? 7) what makes stem cells particularly interesting to researchers? 8) how might stem cells be used to repair brain or heart damage, even though these cells do not undergo mitosis? 9) why do you think beauty experts would also be interested in stem cells? 10) what is the connection between cancer and mitosis? 11) why is it so difficult for your body to battle cancer? 12) why does you hair fall out of the chemotherapy?arrow_forwardTelophase in Mitosis a ) Chromosomes begin to uncoil into chromatin. b) Nucleolus and nuclear membrane begin to reappear. c) Spindle slowly dissolves. d) In animal cells, cytokinesis occurs with a cleavage furrow dividing one cell into two cells. e) In plant cells, cytokinesis occurs with the formation of a cell plate. This plate divides the original cell into two cells and is part of the new cell wall.arrow_forwardBriefly describe the structure and function of each of the following: plasma membrane, chromatin, nucleus, nucleolus, rough endoplasmic reticulum (rough ER), Golgi complex, lysosomes, mitochondria, microfilaments, microtubules, intermediate filaments, centrioles, basal body (kinetosome), tight junction, gap junction, desmosome, glycoprotein, microvilli.arrow_forward
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