Essentials of Genetics Plus Mastering Genetics with eText -- Access Card Package (9th Edition) (Klug et al. Genetics Series)
9th Edition
ISBN: 9780134047201
Author: William S. Klug, Michael R. Cummings, Charlotte A. Spencer, Michael A. Palladino
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 2PDQ
Review the Chapter Concepts list on page 12. All of these pertain to conceptual issues involving mitosis or meiosis. Based on these concepts, write a short essay that contrasts mitosis and meiosis, including their respective roles in organisms, the mechanisms by which they achieve their respective outcomes, and the consequences should either process fail to be executed with absolute fidelity. ■
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Select the best answer or answers from the choices given: Relative to differences between mitosis and meiosis, choose the statements that apply only to events of meiosis. (a) tetrads present, (b) produces two daughter cells, (c) produces four daughter cells, (d) occurs throughout life, (e) reduces thechromosomal number by half, (f) synapsis and crossover of homologues occur.
Please explain (and simply) the process of mitosis and meiosis. What are the differences between them?
Briefly explain what 2n=12 means in terms of mitosis and meiosis.
Chapter 2 Solutions
Essentials of Genetics Plus Mastering Genetics with eText -- Access Card Package (9th Edition) (Klug et al. Genetics Series)
Ch. 2 - CASE STUDY | Timing is everything A man in his...Ch. 2 - CASE STUDY | Timing is everything A man in his...Ch. 2 - CASE STUDY | Timing is everything A man in his...Ch. 2 -
HOW DO WE KNOW?
1. In this chapter, we focused...Ch. 2 -
2. Review the Chapter Concepts list on page 12....Ch. 2 - What role do the following cellular components...Ch. 2 -
4. Discuss the concepts of homologous...Ch. 2 - If two chromosomes of a species are the same...Ch. 2 - Describe the events that characterize each stage...Ch. 2 - How are chromosomes named on the basis of their...
Ch. 2 - Prob. 8PDQCh. 2 -
9. Describe the phases of the cell cycle and the...Ch. 2 - Define and discuss these terms: (a) synapsis, (b)...Ch. 2 - Prob. 11PDQCh. 2 - Prob. 12PDQCh. 2 - Contrast spermatogenesis and oogenesis. What is...Ch. 2 -
14. Explain why meiosis leads to significant...Ch. 2 -
15. A diploid cell contains three pairs of...Ch. 2 - Prob. 16PDQCh. 2 -
17. During oogenesis in an animal species with a...Ch. 2 - Prob. 18PDQCh. 2 -
19. During the first meiotic prophase, (a) when...Ch. 2 -
20. Describe the role of meiosis in the life...Ch. 2 - Prob. 21PDQCh. 2 - Prob. 22PDQCh. 2 - Prob. 23PDQCh. 2 -
24. If one follows 50 primary oocytes in an...Ch. 2 -
25. The nuclear DNA content of a single sperm...Ch. 2 - For Problems 26–31, consider a diploid cell that...Ch. 2 - For Problems 26–31, consider a diploid cell that...Ch. 2 - For Problems 26–31, consider a diploid cell that...Ch. 2 -
For Problems 26–31, consider a diploid cell that...Ch. 2 - For Problems 26–31, consider a diploid cell that...Ch. 2 - For Problems 26–31, consider a diploid cell that...
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- Which of the following statements is not true in comparing mitosis and meiosis? a. Twice the number of cells are produced in meiosis as in mitosis. b. Meiosis is involved in the production of gametes, unlike mitosis. c. Crossing over occurs in meiosis I but not in meiosis II or mitosis. d. Meiosis and mitosis both produce cells that are genetically identical. e. In both mitosis and meiosis, the parental cell is diploid.arrow_forwardDiscuss the following sets of terms: a. trisomy and triploidy b. aneuploidy and polyploidyarrow_forwardVISUALIZE Draw a simple sketch illustrating how nondisjunction in meiosis can lead to Down syndrome.arrow_forward
- Please compare the processes of Meiosis 1 and Meiosis 2 for a cell that has a diploid number of 6. Please describe each stage, and how they are different in Meiosis 1 and Meiosis 2. For full credit, you will also need to highlight where genetic variation can be increased throughout the process.arrow_forwardThis is a three part question: Mitosis and meiosis are both processes of eukaryotic cell division, with the same names used to describe different stags. a. What are the significant cellular and chromosomal events that occur during each stage of mitosis? b. What are the similarities and differences between the events that occur during each stage of mitosis and the corresponding stage of meiosis I? c. What are the similarities and differences between the events that occur during each stage of mitosis and the corresponding stage of meiosis II?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_forward
- Answer the following: a. Assume that you are married and by chance upon submission for an amniocentesis prenatal checkup it resulted that your baby has more than the total number of chromosomes. What will your final decision to this finding? b.“All organisms have a constant chromosome number. The chromosomes’ sizes vary. If by chance the two sentences are not found in the organisms, what will happen ?arrow_forwardIn regards to MEIOSIS, give the order of the following events in terms of chromosome number. Question 48 options: meiosis 1 and cytokinesis one cell containing 92 chromosomes meiosis 2 and cytokinesis a total of four cells, each containing 23 chromosomes one cell containing 46 chromosomes two cells containing 46 chromosomesarrow_forwardPlease compare the processes of Meiosis 1 and Meiosis 2 for a cell that has a diploid number of 6. Please describe each stage, and how they are different in Meiosis 1 and Meiosis 2. you will also need to highlight where genetic variation can be increased throughout the process.arrow_forward
- Considering both asexual and sexual reproduction, does the following statement apply to mitosis only, meiosis only, or both mitosis and meiosis? Mutations that occur during this process would ALWAYS be passed on to the next generation Neither mitosis nor meiosis Both mitosis and meiosis Meiosis only Mitosis onlyarrow_forwardThe diploid chromosome number of an organisms is 8. How many of each of the following are present in each cell at the stage of mitosis and meiosis indicated?arrow_forwardThe following pairs of term differentiate mitosis from meiosis. Describe the pair of terms briefly. 1. Somatic cells vs. sex cells 2. Haploid cells vs. Diploid cells 3. Homologous chromosomes vs. Sister chromatids 4. Daughter cells vs. 2 daughter cells 5. 2n = 6 vs n = 3arrow_forward
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cell division of meiosis and mitosis; Author: Stated Clearly;https://www.youtube.com/watch?v=A-mFPZLLbHI;License: Standard youtube license