Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Question
Chapter 9, Problem 6FIB
Summary Introduction
Introduction:
A chromosome is a DNA molecule with all the genetic material. It is a thread like structure present in the nucleus in coiled form around a protein called histone that supports its structure.
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which of the following would indicate that a cell is in metaphase?
Thin, threadlike chromosomes are widely dispersed in the nucleus.
Chromosomes appear as dark granules in the nucleus.
Centromeres of chromosomes lie on the equator of the cell.
Two sets of chromosomes are present on opposite poles of the cell.
what subunits are microtubules composed of?
a. actin
b. amino acids
c. tubulin
d. glucose
e. nucleotides
During cell division, centromeres have separated, and chromatids are pulled apart, becoming chromosomes. What happens after the chromosomes are pulled to opposite ends of the cell?
Top of Form
Prophase
Anaphase
Metaphase
Chapter 9 Solutions
Biology
Ch. 9.1 - describe the types of cells found in a...Ch. 9.1 - Prob. 2CYLCh. 9.2 - describe the prokaryotic cell cycle and the major...Ch. 9.3 - describe the structure of a eukaryotic chromosome?Ch. 9.3 - describe the functions of telomeres and...Ch. 9.4 - Body, Heal Thyself Ligaments and tendons have a...Ch. 9.4 - describe the events of the eukaryotic cell cycle?Ch. 9.4 - explain the difference between mitotic cell...Ch. 9.5 - What would the consequences be if one set of...Ch. 9.5 - Body, Heal Thyself The precision of mitotic cell...
Ch. 9.5 - describe the steps of mitotic cell division?Ch. 9.5 - describe the usual outcome of mitotic cell...Ch. 9.5 - Prob. 3CYLCh. 9.6 - The saliva of dogs, like the saliva of most...Ch. 9.6 - describe the interactions among growth factors,...Ch. 9.6 - explain how a cell protects against producing...Ch. 9.6 - Yesterday, when Daniel was showering after a...Ch. 9.6 - Prob. 2TCCh. 9 - A cell that remains capable of dividing throughout...Ch. 9 - Prob. 2MCCh. 9 - Prob. 3MCCh. 9 - How does prokaryotic fission differ from...Ch. 9 - Prob. 5MCCh. 9 - The genetic material of all living organisms is...Ch. 9 - Prokaryotic cells divide by a process called...Ch. 9 - Prob. 3FIBCh. 9 - Prob. 4FIBCh. 9 - The four phases of mitosis are _________,...Ch. 9 - Prob. 6FIBCh. 9 - Diagram and describe the eukaryotic cell cycle....Ch. 9 - Prob. 2RQCh. 9 - Prob. 3RQCh. 9 - Define the following terms: centromere, telomere,...Ch. 9 - Prob. 5RQCh. 9 - Prob. 6RQCh. 9 - Prob. 7RQCh. 9 - Most nerve cells in the adult human central...Ch. 9 - Prob. 2AC
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- After mitosis, each daughter cell contains genetic instructions that are ______ and _____ chromosome number of the parent cell. a. identical to the parent cells; the same b. identical to the parent cells; one-half the c. rearranged; the same d. rearranged; one-half thearrow_forwardIn the cell cycle, at which stages do two chromatids make up one chromosome? a. beginning of mitosis b. end of G1 c. beginning of S d. end of mitosis e. beginning of G2arrow_forwardChromosomes are duplicated during what portion of the cell cycle? a. G 1 phase b. S phase c. prophase d. prometaphasearrow_forward
- What would be the outcome if a cell completed mitosis but did not undergo cytokinesis? Group of answer choices The cell would have 92 chromosomes. The cell would have 23 chromosomes. The cell would have two nuclei. There would be two cells. The cell would have 46 chromosomes.arrow_forwardWhat occurs during the prophase stage of mitosis? a.Chromosomes pack tightly and become attached to a newly forming spindle b.Chromosomes align midway between the spindle poles c.Chromosomes arrive at opposite spindle poles and become enclosed by a new nuclear envelope d.Sister chromatids separate and move toward opposite spindle polesarrow_forwardWhich of the following are short lives microtubules? Spindle fibers Cilia Flagella All of the abovearrow_forward
- Which of the following is mismatched? M stage - mitosis and cytokinesis G 2 stage - metabolic preparation for mitosis interphase - shortest stage of the cell cycle G 1 stage - cell grows in size and cell organelles increase in number S stage - DNA synthesisarrow_forwardyou look under a microscope at a cell undergoing mitosis and you see a cell plate developing across the middle of the cell and nuclei forming on either side of the cell plate. The cell is most likely an animal cell in the S phase of the cell cycle a bacterial cell dividing a plant cell in cytokinesis an animal cell in cytokinesisarrow_forwardWhich of the following is responsible for moving chromosomes to the metaphase plate? A. Centromeres B. Cohesins C. Nuclear envelope D. Spindle microtubules 24.arrow_forward
- Which of the following does NOT occurr during mitosis? a. condensation of the chromosomes b. separation of sister chromotids c. replication of DNA d. spindle formationarrow_forwardthe period between mitoses, divided into G1, S, and G2 is a) M phase b) interphase c) C phase d) A phasearrow_forwardMitosisis divided into phases. Match the phase to its characteristic. Chromosomes begin to relax, and new nuclear membranes form Sister chromatids are pulled apart by microtubules of the spindle Condensed chromosomes line up in the center of the cell Nuclear membrane breaks down, chromosomes attach to microtubules Chromosomes begin to condense Cell physically divides (cytoplasm is divided)arrow_forward
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