10. Centrioles and a starburst cluster of spindle fibers would be found in a) both plant...
10. Centrioles and a starburst cluster of spindle fibers would be found in
a) both plant and animal cells
b) only plant cells
c) only animal cells
d) none of the above
11. The process of cytoplasmic division is known as
a) meiosis
b) cytokinesis
c) mitosis
d) fission
Homework Answers
10. c) only animal cells
Centrioles and spindle apparatus are found only in animal cells. Plants dose not contain centrioles.
In plant cells nuclear division is carried out by microtubules.
11. b) cytokinesis
Cytoplasmic division is called cytokinesis. Where as nuclear division is known as karyokinesis. Karyokinesis takes place by phosphase, metaphase, anaphase and telophase.
After completion of karyokinesis cytokinesis takes place.
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10. Centrioles and a starburst cluster of spindle fibers would
be found in
a) both plant...
During the M-phase (Mitosis), spindle fibers extend from centrioles in the poles of the cell and...
During the M-phase (Mitosis), spindle fibers extend from centrioles in the poles of the cell and attach to the centromeres of each replicated chromosome. The chromosomes are aligned along the equatorial plate of the cell in the process. Once all centromeres got attached from either side to a spindle fibre, a cellular checkpoint got passed and the spindle fibers begin to contract towards the poles, pulling the two sister chromatids apart such that one sister chromatid of each of the...
1. which of the following events characterizes metaphase of mitosis? 1. attachment of spindle fibers...
1. which of the following events characterizes metaphase of mitosis? 1. attachment of spindle fibers to the kinetochores of the chromosomes 2. movement of chromosomes to the equatorial plane of the cell. 3. separation of sister chromatids that are being pulled to the poles of the cell A. 1 B. 2 C. 3 D. 1 and 2 E. All of these 2. One cell undergoes one round of meiosis. How many genetically identical cells will be present...
The cell division depicted here is Mitosis only Meiosis only Binary fission All of the above...
The cell division depicted here is Mitosis only Meiosis only Binary fission All of the above None of the above The cell type is Animal Plant Bacterium All of the above None of the above What phase of cell division is the cell at? Anaphase Interphase Metaphase Prophase Telophase How many chromosomes each of the daughter cells will have at the end of cell division? 3 6 9 12 None of the above
2a. The mitotic spindle is composed of a network of which cytoskeletal filaments? 2b. Some type...
2a.
The mitotic spindle is composed of a network of which cytoskeletal
filaments?
2b. Some type of chemotherapeutic drugs, used to treat cancer,
disrupt microtubules and the mitotic spindle. Why are drugs that
disrupt the mitotic spindle effective cancer treatment?
2c. In humans, both meiosis and mitosis start with a cell that
has ____ duplicated chromosomes. Remember, cells duplicate their
DNA during S phase in the cell cycle; this happens prior to meiosis
or mitosis. Meiosis includes two rounds of...
Binary Fission and Mitosis are similar processes. One way they are different is that: . A....
Binary Fission and Mitosis are similar processes. One way they are different is that: . A. In Mitosis, the DNA does not form into chromosomes. • • • B. In Binary Fission, the DNA does not form into chromosomes. C. Binary Fission only occurs in Eukaryotes. D. They both split by growing a new cell wall. What phase is the indicated cell currently in? D A. Anaphase B. Telophase C. Metaphase D. Prophase • 10 PUNTS When DNA condenses in...
The following figure shows a cell containing a pair of homologous chromosomes. The alleles for the...
The following figure shows a cell containing a pair of
homologous chromosomes. The alleles for the F gene are indicated on
each chromosome. Which of the following most accurately represents
the configuration of chromosomes within the cell following DNA
replication, prior to meiosis?
Select one:
a.
b.
c.
d.
Which term is used to describe a pair of similar chromosomes in
a cell:
Select one:
a. bifurcates
b. homologous
c. chromatids
d. replicants
Which of the following statements is TRUE...
72. Looking into your microscope, vou spot an unusual coll Instead of the typical rounded cell...
72. Looking into your microscope, vou spot an unusual coll Instead of the typical rounded cell shape, the cen dcell shape, the cell has a very narrow middle separating two bulging ends. It sort of looks like the number or to this cell is two buiging ends. It sort of looks like the number 81 You realize that A) undergoing cytokinesis. C) in the G1 phase of interphase. B) in the S phase of interphase. D) about to undergo mitosis....
Question 1 1 pts A plant-derived protein known as colchicine can be used to poison cells...
Question 1 1 pts A plant-derived protein known as colchicine can be used to poison cells by blocking the formation of the spindle. Which of the following would result if colchicine is added to a sample of cells in G2? The chromosomes would segregate but in a disorderly pattern. The chromosomes would still line up along across the middle of the cell, but the chromatids would not end up segregating The cells would immediately die. Each resultant daughter cell would...
Activity 1: Observation of Mitosis in an Onion and a Whitefish Instructions: View the images in...
Activity 1: Observation of Mitosis in an Onion and a Whitefish Instructions: View the images in Table 1 and Table 2 of the Activity 1 Page to complete blanks below Table 1: Stages of the Cell Cycle in Onion Root Tip Table 2: Stages of Mitosis in Whitefish Blastula *Name Each Stage *Name Each Stage (a) (b) (b) (c) (c) (d) (d) (e) *To name the stages above, choose from: Interphase, Prophase. Metaphase, Anaphase or Telophase/Cytokinesis Identify the number in...
Half of a duplicated chromosome cells that have half the normal amount of DNA M To...
Half of a duplicated chromosome cells that have half the normal amount of DNA M To divide, plant cells must form a(n) - Reproduction style used by yeasts Process whereby daughter cells separate themselves A Homologous pair B. Parthenogenesis C. Centriole D. Cytokinesis 5. Spindle fibers F. Cell wall G. Budding H. Genome Cell plate J. Regeneration Vegetative reproduction Making more plants from parts of other plants Term referring to the cell division that bacteria do An organism that produces...
During the M-phase (Mitosis), spindle fibers extend from centrioles in the poles of the cell and attach to the centromeres of each replicated chromosome. The chromosomes are aligned along the equatorial plate of the cell in the process. Once all centromeres got attached from either side to a spindle fibre, a cellular checkpoint got passed and the spindle fibers begin to contract towards the poles, pulling the two sister chromatids apart such that one sister chromatid of each of the...
The cell division depicted here is Mitosis only Meiosis only Binary fission All of the above None of the above The cell type is Animal Plant Bacterium All of the above None of the above What phase of cell division is the cell at? Anaphase Interphase Metaphase Prophase Telophase How many chromosomes each of the daughter cells will have at the end of cell division? 3 6 9 12 None of the above
2a.
The mitotic spindle is composed of a network of which cytoskeletal
filaments?
2b. Some type of chemotherapeutic drugs, used to treat cancer,
disrupt microtubules and the mitotic spindle. Why are drugs that
disrupt the mitotic spindle effective cancer treatment?
2c. In humans, both meiosis and mitosis start with a cell that
has ____ duplicated chromosomes. Remember, cells duplicate their
DNA during S phase in the cell cycle; this happens prior to meiosis
or mitosis. Meiosis includes two rounds of...
Binary Fission and Mitosis are similar processes. One way they are different is that: . A. In Mitosis, the DNA does not form into chromosomes. • • • B. In Binary Fission, the DNA does not form into chromosomes. C. Binary Fission only occurs in Eukaryotes. D. They both split by growing a new cell wall. What phase is the indicated cell currently in? D A. Anaphase B. Telophase C. Metaphase D. Prophase • 10 PUNTS When DNA condenses in...
The following figure shows a cell containing a pair of
homologous chromosomes. The alleles for the F gene are indicated on
each chromosome. Which of the following most accurately represents
the configuration of chromosomes within the cell following DNA
replication, prior to meiosis?
Select one:
a.
b.
c.
d.
Which term is used to describe a pair of similar chromosomes in
a cell:
Select one:
a. bifurcates
b. homologous
c. chromatids
d. replicants
Which of the following statements is TRUE...
72. Looking into your microscope, vou spot an unusual coll Instead of the typical rounded cell shape, the cen dcell shape, the cell has a very narrow middle separating two bulging ends. It sort of looks like the number or to this cell is two buiging ends. It sort of looks like the number 81 You realize that A) undergoing cytokinesis. C) in the G1 phase of interphase. B) in the S phase of interphase. D) about to undergo mitosis....
Question 1 1 pts A plant-derived protein known as colchicine can be used to poison cells by blocking the formation of the spindle. Which of the following would result if colchicine is added to a sample of cells in G2? The chromosomes would segregate but in a disorderly pattern. The chromosomes would still line up along across the middle of the cell, but the chromatids would not end up segregating The cells would immediately die. Each resultant daughter cell would...
Activity 1: Observation of Mitosis in an Onion and a Whitefish Instructions: View the images in Table 1 and Table 2 of the Activity 1 Page to complete blanks below Table 1: Stages of the Cell Cycle in Onion Root Tip Table 2: Stages of Mitosis in Whitefish Blastula *Name Each Stage *Name Each Stage (a) (b) (b) (c) (c) (d) (d) (e) *To name the stages above, choose from: Interphase, Prophase. Metaphase, Anaphase or Telophase/Cytokinesis Identify the number in...
Half of a duplicated chromosome cells that have half the normal amount of DNA M To divide, plant cells must form a(n) - Reproduction style used by yeasts Process whereby daughter cells separate themselves A Homologous pair B. Parthenogenesis C. Centriole D. Cytokinesis 5. Spindle fibers F. Cell wall G. Budding H. Genome Cell plate J. Regeneration Vegetative reproduction Making more plants from parts of other plants Term referring to the cell division that bacteria do An organism that produces...
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