BIOLOGY
4th Edition
ISBN: 9781266739606
Author: Hoefnagels
Publisher: MCG
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Textbook Question
Chapter 9, Problem 9WIO
List examples of abnormalities in chromosome number and structure. Explain how each relates to an error in meiosis.
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Explain how nondisjunction in meiosis is responsible for chromosome abnormalities such as Down syndrome, Klinefelter syndrome, and Turner syndrome.
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Briefly describe nondisjunction in meiosis and identify several potential consequences. In other words, what are the possible outcomes?
Chapter 9 Solutions
BIOLOGY
Ch. 9.1 - Prob. 1MCCh. 9.1 - How can asexually reproducing organisms acquire...Ch. 9.1 - Prob. 3MCCh. 9.2 - Prob. 1MCCh. 9.2 - Review figure 7.8, which shows that a chromosome...Ch. 9.3 - How do haploid and diploid nuclei differ?Ch. 9.3 - Prob. 2MCCh. 9.3 - Prob. 3MCCh. 9.3 - Prob. 4MCCh. 9.4 - What happens during interphase
Ch. 9.4 - How do the events of meiosis I and meiosis II...Ch. 9.5 - Prob. 1MCCh. 9.5 - Prob. 2MCCh. 9.5 - How are identical twins different from fraternal...Ch. 9.6 - Prob. 1MCCh. 9.6 - In what ways are mitosis and meiosis different?Ch. 9.7 - Prob. 1MCCh. 9.7 - How can deletions, duplications, inversions, and...Ch. 9.8 - What are the stages of sperm development in...Ch. 9.8 - Prob. 2MCCh. 9.8 - How does gamete production in plants differ from...Ch. 9.9 - Prob. 1MCCh. 9.9 - Prob. 2MCCh. 9 - Prob. 1MCQCh. 9 - Meiosis explains why a. you inherited half of your...Ch. 9 - Prob. 3MCQCh. 9 - Prob. 4MCQCh. 9 - Prob. 5MCQCh. 9 - Prob. 6MCQCh. 9 - Explain why evolution often selects traits that...Ch. 9 - Describe a situation in which asexual reproduction...Ch. 9 - Sketch the relationships among mitosis, meiosis,...Ch. 9 - Prob. 4WIOCh. 9 - How are the members of a homologous pair similar...Ch. 9 - Prob. 6WIOCh. 9 - Draw all possible metaphase I chromosomal...Ch. 9 - In some animals, females can reproduce by...Ch. 9 - List examples of abnormalities in chromosome...Ch. 9 - Prob. 10WIOCh. 9 - Prob. 11WIOCh. 9 - Prob. 12WIOCh. 9 - 1. Review section 9.5 and the Survey the Landscape...Ch. 9 - 2. Fit the following terms into this concept map:...Ch. 9 - 3. Create a separate concept map that includes...
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- Identify the type of chromosomal aberration described in each of the following cases: a. loss of a chromosome segment b. extra copies of a chromosome segment c. reversal in the order of a chromosome segment d. movement of a chromosome segment to another, nonhomologous chromosomearrow_forwardExplain the purpose and result of meiosis AND describe the necessity of the reduction of the chromosome number and how it is achieved in meiosis.arrow_forwardDescribe the consequences of nondisjunction during meiosisarrow_forward
- Identify the stage of meiosis for the following cells:arrow_forwardIdentify the type of chromosomal aberration described in each of the following cases and provide and example. loss of a chromosome segment extra copies of a chromosome segment reversal in the order of a chromosome segment movement of a chromosome segment to another, non homologous chromosomearrow_forwardExplain how the consequences of a disruption in the process of mitosis differ from the consequences of a disruption in the process of meiosis, both short-term and long-term.arrow_forward
- Explain about the Changes in Sex Chromosome Number ?arrow_forwardWhat are the major differences between mitosis and meiosis? Explain this both in terms of the different steps of each event and with regards to the final products of each event. Remember to mention the events which are unique to meiosis and why they are significant.arrow_forwardB.If the diploid human chromosome number (2n) =46, what will be the chromosome number per cell in each stage of meiosis if nondisjunction of a pair of chromosomes happened during anaphase II of Meiosis IIarrow_forward
- A.If the diploid human chromosome number (2n) =46, what will be the chromosome number per cell in each stage of meiosis if nondisjunction of a pair of chromosomes happened during anaphase I of Meiosis I.arrow_forwardExplain the process of the following: a. The normal segregation of chromosomes during Meiosis 1 and Meiosis 2 in MALE. b. The abnormal segregation of chromosomes during Meiosis 1 and Meiosis 2 in FEMALE.arrow_forwardDescribe the process of crossing over AND identify the phase of meiosis when crossing over occurs.arrow_forward
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