BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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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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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 them
What occurs during the S phase of the cell cycle?
a.
The cytoskeleton is dismantled.
b.
The cell accumulates the building blocks of chromosomal DNA.
c.
Chromosomes are duplicated.
If you were to look at a sample of actively dividing leaf cells, in what stage of the cell cycle would you find most of the cells? a. Interphase c. Metaphase b. Prophase d. Telophase
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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- At what stage in mitosis do the sister chromatids line up along the midline of the cell? a. Metaphase b. Anaphase c. Telophase d. Prophasearrow_forwardIf 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_forwardUnpacking 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_forward
- Attachment of the mitotic spindle fibers to the kinetochores is a characteristic of which stage of mitosis? a. prophase b. prometaphase c. metaphase d. anaphasearrow_forwardDuring which phase of mitosis do the microtubules in the spindle shorten? A. prophase B. metaphase C. anaphase D. telophasearrow_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_forwardwhich of the following describes how RNA and DNA are used in mitosis? a. leads to the synthesis of proteins that assist in cell replication b. produce energy for cell division c. moves vesicles to the middle of the cell to form the cell plate d. forms spindle fibers that attach to chromosomesarrow_forwardThe image below is of a stained onion root tip. Determine the phase of mitosis that each cell below is in, and record that below. Look closely - cells that are clearly stained are numbered in the image below. Use those numbers when assigning the phase of mitosis for each cell. Using the same onion root tip image and data from the question above, which phase are the majority of cells in? Make a conclusion about what this means about the length of each phase of the cell cycle.arrow_forward
- Which is the correct order of stages in the cell cycle? a. G1, S, G2, prophase, metaphase, anaphaseb. S, G1, G2, prophase, metaphase, anaphasec. Prophase, S, G1, G2, metaphase, anaphased. S, G1, G2, anaphase, prophase, metaphasearrow_forwardBiology Name: Date: Period: Mitosis Worksheet The diagram below shows six cells in various phases of the cell cycle. Note the cells are not arranged in the order in which mitosis occurs and one of the phases of mitosis occurs twice. Use the diagram to answer questions 1-7. Phases of the Cell Cycle 1) Cells A and F show an early and a late stage of the same phase of mitosis. What phase is it? 2) Which cell is in metaphase? 3) Which cell is in the first phase of mitosis? 4) In cell A, what structure is labeled X? 5) Which cell is in the "in between" phase of mitosis? 6) Place the diagrams in order from first to last. 7) Are the cells depicted plant or animal cells? Explain your answer. 8) What is the longest phase of the cell cycle? 9) Why is mitosis important?arrow_forwardWhich of the following events occur in the stage of cell division illustrated above? Select one: a. DNA replication b. Homologous chromosomes align at the equator c. Daughter cells form d. Sister chromatids separatearrow_forward
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