Question 2 Listen Put the following in order in mitosis and the preceding interphase Hint: Determine whether the event occurs in G1, S, G2, prophase, metaphase, anaphase, telophase or cytokinesis first. Also draw the stages out. < Spindle forms Chromosomes become less distinct, nuclear envelope reforms. Sisters separate G2

Question 2 Listen Put the following in order in mitosis and the preceding interphase Hint: Determine whether the event occurs in G1, S, G2, prophase, metaphase, anaphase, telophase or cytokinesis first. Also draw the stages out. < Spindle forms Chromosomes become less distinct, nuclear envelope reforms. Sisters separate G2

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter6: Reproduction At The Cellular Level

Section: Chapter Questions

Problem 1ACQ: Figure 6.4 Which of the following is the correct order of events in mitosis? a. Sister chromatids...

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Figure 6.4 Which of the following is the correct order of events in mitosis? a. Sister chromatids line up at the metaphase plate. The kinetochore becomes attached to the initotic spindle. The nucleus re-forms and the cell divides. The sister chromatids separate. b. The kinetochore becomes attached to the mitotic spindle. The sister chromatids separate. Sister chromatids line up at the metaphase plate. The nucleus re-forms and the cell divides. c. The kinetochore becomes attached to metaphase plate. Sister chromatids line up at the metaphase plate. The kinetochore breaks down and the sister chromatids separate. The nucleus re-forms and the cell divides. d. The kinetochore becomes attached to the mitotic spindle. Sister chromatids line up at the metaphase plate. The kinetochore breaks apart and the sister chromatids separate. The nucleus re-forms and the cell divides.
Figure 10.6 Which of the following is the correct order of events in mitosis? Sister chromatids line up at the metaphase plate. The kinetochore becomes attached to the mitotic spindle. The nucleus reforms and the cell divides. Cohesin proteins break down and the sister chromatids separate. The kinetochore becomes attached to the mitotic spindle. Cohesin proteins break down and the sister chromatids separate. Sister chromatids line up at the metaphase plate. The nucleus reforms and the cell divides. The kinetochore becomes attached to the cohesin proteins. Sister chromatids line up at the metaphase plate. The kinetochore breaks down and the sister chromatids separate. The nucleus reforms and the cell divides. The kinetochore becomes attached to the mitotic spindle. Sister chromatids line up at the metaphase plate. Cohesin proteins break down and the sister chromatids separate. The nucleus reforms and the cell divides.
Separation of the sister chromatids is a characteristic of which stage of mitosis? a. prometaphase b. metaphase c. anaphase d. telophase
Fully answer any one of the two questions below using all relative terms: Describe the events that occur in each of the following stages of mitosis prophase prometaphase metaphase anaphase telophase OR Describe the events that occur in each of the following stages of interphase: G1 S G2 Discuss the how the amount of DNA changes during each phase and describe the fate of the cell after G2.
Put the following phases of the cell cycle and mitosis in the correct order. Prometaphase Interphase - S phase Telophase Prophase Anaphase Interphase - G1 Metaphase Interphase - G2
Which phase of mitosis would nucleoi disappear? Question 3 options: prophase telophase prometaphase anaphase metaphase
QUESTION 2 Which statement(s) about mitosis is/are true? Daughter cells produced by mitosis have cytoplasmic content (ie, organelles, cytoplasm, number of mitochondria, etc.) that is identical Chromosomes condense during cytokinesis Homologous chromosomes on separate kinetochores line up together at the metaphase plate Daughter cells obtain a copy of each chromatid from their parent cell During prophase, the mitotic spindle develops
Speculate about the following details of mitosis. 1. Why do chromosomes need to condense during mitosis? 2. Why does the nuclear membrane need to break down at the beginning of prometaphase? 3. Why do chromosomes congress (migrate) toward the metaphase plate during metaphase, and what forces keep the chromosomes there until anaphase begins? 4. What would happen if one kinetochore of one chromosome failed to attach to the spindle and the cell entered anaphase? In a general sense, how do cells normally prevent this situation? 5. During late anaphase and telophase, animal cells elongate to aid the eventual separation of the two daughter cells in cytokinesis. This elongation can occur even in cell suspensions, where different cells do not come into contact. Are the forces that elongate the cell likely to be pushing forces or pulling forces, and where do these forces come from?
Assuming mitosis is divided into prophase, prometaphase, metaphase, anaphase, and telophase, identify the events that take place in prometaphase. Microtubules attach to kinetochores. All chromosomes are aligned on the metaphase plate. The nucleolus disappears. Chromosomes condense. Sister chromatids split. The chromosomes move toward the equator by action of the kinetochore microtubules. Centrioles replicate. The nuclear envelope disappears. Spindle fibers form. Centrioles are migrating to opposite sides of the nucleus. U U U 00
Using the following clues, correctly label the steps of mitosis. Rewrite the phase only in the correct box Interphase Prophase (Visible) Metaphase (Middle) Anaphase (Apart) Telophase (Two)
Indicate the stage of mitosis (interphase = I, prophase = P, metaphase = M, anaphase = A, telophase = T) during which each of the following events occur. chromatid doublets separate to individual chromosomescentriole replicatesreplicated chromosomes (chromatid doublets) are arranged in single file next to one another at the cell's equatornuclear membrane is disappearingspindle fibers form and become visiblecell plate (plant) or cleavage furrow (animal) forms and is visiblechromosomes are at opposite poles of the cell; cytokinesis is almost completedchromosomes (chromatids) first become visible as long thin strandsDNA (chromosome) replication occurs
Which phase of mitosis would the nuclear envelope reform? Question 4 options: metaphase anaphase telophase prometaphase prophase