CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
10th Edition
ISBN: 9780136538820
Author: Taylor
Publisher: INTER PEAR
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Chapter 8, Problem 10TYK
Cytochalasin B is a chemical that disrupts microfilament formation. This chemical would interfere with
a.
b. formation of the mitotic spindle.
c. cleavage.
d. formation of the cell plate.
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Students have asked these similar questions
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.
During this stage, the microtubules are shortened causing separation of sister chromatids.
a. Prophase
O b. Metaphase
c. Anaphase
d. Telophase
Which of the following is true of normal adult cells but NOT cancer cells?
A. Cell death after a finite number of cell divisions
B. Contact with other cells increases likelihood of division
C. Large amount of telomerase present D. Do not care about cell density while culture
Chapter 8 Solutions
CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
Ch. 8 - Complete the following table to compare mitosis...Ch. 8 - If an intestinal cell in a grasshopper contains 24...Ch. 8 - Which of the following is not a function of...Ch. 8 - It is difficult to observe individual chromosomes...Ch. 8 - A fruit fly somatic cell contains 8 chromosomes....Ch. 8 - If a fragment of a chromosome breaks off and then...Ch. 8 - Which of the following phases of mitosis is...Ch. 8 - A biochemist measured the amount of DNA in cells...Ch. 8 - A micrograph of a dividing cell from a mouse...Ch. 8 - Cytochalasin B is a chemical that disrupts...
Ch. 8 - Why are individuals with an extra chromosome 21,...Ch. 8 - In the light micrograph below of dividing cells...Ch. 8 - An organism called a plasmodial slime mold is one...Ch. 8 - Prob. 14TYKCh. 8 - Discuss the factors that control the division of...Ch. 8 - Compare cytokinesis in plant and animal cells. In...Ch. 8 - Sketch a cell with three pairs of chromosomes...Ch. 8 - Suppose you read in the newspaper that a genetic...Ch. 8 - Bacteria are able to divide on a faster schedule...Ch. 8 - Prob. 20TYKCh. 8 - A mule is the offspring of a horse and a donkey. A...Ch. 8 - What you think of as a banana is a Cavendish, one...Ch. 8 - SCIENTIFIC THINKING The study described in Module...
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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_forwardWhat occurs during metaphase phase of mitosis? A. Microtubules can be lengthened by adding subunits at the + end to move chromosomes towards the metaphase plate B. Microtubules can be shortened to move chromosomes towards the metaphase plate. C. Motor proteins pull chromosomes along the microtubules to move them towards the metaphase plate. D. All of the above E. None of the abovearrow_forwardDuring this stage of mitosis, the chromatin coils to form chromosomes, the nuclear envelope disappears, the nucleolus dissolves, spindle fibers are formed, and the centrioles migrate to the poles. a. prophase b. metaphase c. anaphase d. telophasearrow_forward
- During cytokinesis, a contractile ring of actin microfilament forms the ______________ and pinches the cell apart. A. Kinetochores B. Cleavage furrow C. Equator D. Astersarrow_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_forwardDuring this stage of mitosis, the chromosomes become attached to the spindle fibers. A. Prometaphase B. Prophase C. Metaphase D. Anaphase E. Telophasearrow_forward
- In 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_forwardWhich of the following statements correctly identifies the difference between plant and animal cell division? Select one: a. The cell walls of plants prevent the process of cytokinesis. b. Plants cells lack centrioles, and they form a cell plate during cytokinesis. c. Both plant and animal cells undergo mitosis and cytokinesis, but they lack the interphase. d. Plant cells lack centromeres, and they form a cell wall to produce two daughter cells.arrow_forwardAll of the following events happen during prophase, except... A. Chromosomes are lined up in the middle of the cell B. Spindle fibers form and attach to chromosomes C.Nucleus breaks down D. Chromatin condenses into chromosomesarrow_forward
- Match 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_forwardParamecium is a single-cell eukaryotic organism that can reproduce by mitotic cell division. Prior to the M phase of the cell cycle, which of the following must occur? A. The cell must replicate its chromosomes. B. The nucleus must divide. C. The cell must first be fertilized. D. Sister chromatids must be separated. A. The cell must replicate its chromosomes.arrow_forwardChromosomes are visible under microscope during cell division because a. Thickening of chromatins b. Disappearance of the nucleoli c. Disintegration of the nuclear membrane d. Duplication of the DNAarrow_forward
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