GENETICS:ANALYSIS+PRIN.(LL)-W/ACCESS
6th Edition
ISBN: 9781260239775
Author: BROOKER
Publisher: MCG
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Textbook Question
Chapter 3.3, Problem 1COMQ
What is the function of the kinetochore during mitosis?
a. It promotes the attachment of monads to each other to form a dyad.
b. It is a location where a kinetochore microtubule can attach to a chromosome.
c. It promotes the condensation of chromosomes during prophase.
d. Both a and b are correct.
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Check out a sample textbook solutionStudents have asked these similar questions
If 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?
Which statement about eukaryotic chromosomes entering mitosis is NOT true?a. They enter as two chromatids.b. They enter with a single centromere.c. They are soon visible under the light microscope.d. Their DNA is not yet replicated.
What is the fundamental difference between mitosis and meiosis?
A.
DNA is replicated twice in meiosis, but only once in mitosis.
B.
The number of DNA molecules per cell nucleus is cut in half in meiosis but remains constant in mitosis.
C.
The number of chromosomes doubles in meiosis, whereas it stays the same in mitosis.
D.
Mitosis involves two cell divisions, whereas meiosis only involves one.
Chapter 3 Solutions
GENETICS:ANALYSIS+PRIN.(LL)-W/ACCESS
Ch. 3.1 - 1. Which of the following is not found in a...Ch. 3.1 - When preparing a karyotype, which of the following...Ch. 3.1 - How many sets of chromosomes are found in a human...Ch. 3.2 - Binary fission a. is a form of asexual...Ch. 3.2 - Prob. 2COMQCh. 3.2 - What critical event occurs during the S phase of...Ch. 3.3 - 1. What is the function of the kinetochore during...Ch. 3.3 - Prob. 2COMQCh. 3.4 - Prob. 1COMQCh. 3.4 - Which phase of meiosis is depicted in the drawing...
Ch. 3.5 - In animals, a key difference between...Ch. 3.5 - Which of the following statements regarding plants...Ch. 3.6 - Which of the following is not one of the tenets of...Ch. 3.6 - A pea plant has the genotype TtRr. The independent...Ch. 3.6 - In mammals, sex is determined by a. the SRY gene...Ch. 3.6 - An abnormal fruit fly has two sets of autosomes...Ch. 3 - The process of binary fission begins with a single...Ch. 3 - 2. What is a homolog? With regard to genes and...Ch. 3 - What is a sister chromatid? Are sister chromatids...Ch. 3 - With regard to sister chromatids, which phase of...Ch. 3 - A species is diploid and has three chromosomes per...Ch. 3 - How does the attachment of kinetochore...Ch. 3 - 7. For the following events, specify whether they...Ch. 3 - Prob. 8CONQCh. 3 - A cell is diploid and contains three chromosomes...Ch. 3 - Prob. 10CONQCh. 3 - A eukaryotic cell is diploid and contains 10...Ch. 3 - Prob. 12CONQCh. 3 - 13. A cell has four pairs of chromosomes. Assuming...Ch. 3 - 14. With regard to question C13, how would the...Ch. 3 - Eukaryotic cells must sort their chromosomes...Ch. 3 - Why is it necessary for the chromosomes to...Ch. 3 - Nine-banded armadillos almost always give birth to...Ch. 3 - 18. A diploid species has four chromosomes per set...Ch. 3 - 19. Explain why the products of meiosis may not be...Ch. 3 - The period between meiosis I and meiosis II is...Ch. 3 - 21. List several ways in which telophase appears...Ch. 3 - Corn has 10 chromosomes per set, and the...Ch. 3 - The arctic fox has 50 chromosomes (25 per set),...Ch. 3 - 24. Let’s suppose that a gene affecting...Ch. 3 - 25. Describe the cellular differences between male...Ch. 3 - 26. At puberty, the testes contain a finite number...Ch. 3 - Describe the timing of meiosis I and II during...Ch. 3 - 28. Three genes (A, B, and C) are found on three...Ch. 3 - A woman with an abnormally long chromosome 13 (and...Ch. 3 - Assuming that such a fly would be viable, what...Ch. 3 - 31. What would be the sex of a human with each of...Ch. 3 - When studying living cells in a laboratory,...Ch. 3 - 2. In Morgan’s experiments, which result do you...Ch. 3 - 3. In his original studies of Figure 3.18, Morgan...Ch. 3 - How would you set up crosses to determine if a...Ch. 3 - 5. Occasionally during meiosis, a mistake can...Ch. 3 - Lets suppose that you have made a karyotype of a...Ch. 3 - Prob. 7EQCh. 3 - 8. White-eyed flies have a lower survival rate...Ch. 3 - A rare form of dwarfism that also included hearing...Ch. 3 - 10. Discuss why crosses (i.e., the experiments of...Ch. 3 - Prob. 11EQCh. 3 - 12. Experimentally, how do you think researchers...Ch. 3 - 1. In Figure 3.18, Morgan obtained a white-eyed...Ch. 3 - 3. Discuss the principles of the chromosome theory...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- 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 themarrow_forwardWhat occurs during the anaphase stage of mitosis? a.Chromosomes arrive at opposite spindle poles and become enclosed by a new nuclear envelope. b.Chromosomes pack tightly and become attached to a newly forming spindle. c.Sister chromatids separate and move toward opposite spindle poles. d.All chromosomes are aligned midway between spindle poles.arrow_forwardThe 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_forward
- 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.arrow_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? A. prophase B. interphase C. telophase D. anaphasearrow_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_forward
- Unpacking 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_forwardAt what stage in mitosis do the sister chromatids line up along the midline of the cell? a. Metaphase b. Anaphase c. Telophase d. Prophasearrow_forwardWhat happens during telophase? A. Chromosomes are visible, nuclear envelope disappears, spindle fibers become visible B. Sister chromatids are pulled apart, daughter cells begin to from C. Chromosomes line up in the middle, microtubules attach themselves to chromosomes D. Sister chromatids reach opposite ends of the cell, nucelar envelopes begin to formarrow_forward
- The chromosomes become visible under a light microscope during which stage of mitosis? a. prophase b. prometaphase c. metaphase d. anaphasearrow_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_forwardAt metaphase I, homologous chromosomes are connected only at what structures? a. chiasmata b. recombination nodules c. microtubules d. kinetochoresarrow_forward
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