BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
3rd Edition
ISBN: 9781260670929
Author: Hoefnagels
Publisher: MCG CUSTOM
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Chapter 9, Problem 5WIO
In some animals, females can reproduce by themselves—that is, without males. In this process, called parthenogenesis, the young develop from unfertilized eggs. Use the Internet to find a species that uses parthenogenesis. How does parthenogenesis work in that species? What are the differences between meiosis in that species and the events of “typical” meiosis?
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Why is meiosis necessary in sexual reproducing organisms?
Which statement does not accurately describe what occurs during the process of meiosis?
A) All stages of meiosis follow DNA replication.
B) Meiosis produces gametes with the haploid chromosome number.
C) Meiosis produces four identical gametes, either egg or sperm.
D) Genetic variation among sexually reproducing organisms is enhanced by meiosis.
Not Graded
What is the purpose of meiosis? In other words, why create haploid cells?
Chapter 9 Solutions
BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
Ch. 9.1 - Prob. 1MCCh. 9.1 - Prob. 2MCCh. 9.1 - Prob. 3MCCh. 9.2 - Prob. 1MCCh. 9.2 - Draw a karyotype for a cell with a diploid number...Ch. 9.2 - Prob. 3MCCh. 9.3 - Prob. 1MCCh. 9.3 - Prob. 2MCCh. 9.3 - Prob. 3MCCh. 9.3 - Prob. 4MC
Ch. 9.4 - Prob. 1MCCh. 9.4 - Prob. 2MCCh. 9.5 - Prob. 1MCCh. 9.5 - Prob. 2MCCh. 9.5 - Prob. 3MCCh. 9.6 - Prob. 1MCCh. 9.6 - In what ways are mitosis and meiosis different?Ch. 9.7 - Prob. 1MCCh. 9.7 - Prob. 2MCCh. 9.7 - Draw a diagram to show how nondisjunction of all...Ch. 9.7 - Prob. 4MCCh. 9.7 - Prob. 5MCCh. 9 - Prob. 1MCQCh. 9 - Prob. 2MCQCh. 9 - Prob. 3MCQCh. 9 - Prob. 4MCQCh. 9 - Prob. 5MCQCh. 9 - Which of the following best describes what happens...Ch. 9 - Prob. 7MCQCh. 9 - Explain why evolution often selects traits that...Ch. 9 - Prob. 2WIOCh. 9 - Sketch the relationships among mitosis, meiosis,...Ch. 9 - What is the difference between haploid and diploid...Ch. 9 - In some animals, females can reproduce by...Ch. 9 - How are mitosis and meiosis different?Ch. 9 - Prob. 7WIOCh. 9 - Prob. 8WIOCh. 9 - List some examples of chromosome abnormalities,...Ch. 9 - Some large companies in the United States cover...Ch. 9 - Prob. 1PITCh. 9 - Prob. 2PITCh. 9 - Where do the members of each pair of homologous...Ch. 9 - Review section 9.5 and the Survey the Landscape...
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- Which statement is true of meiosis? 1)two identical cells in both divisions 2)the first division produces haploid cells and the second produces diploid cells 3)the first division produces diploid cells and the second produces haploid cells 4) the products of both meiotic divisions are haploidarrow_forwardDistinguish between the following terms: somatic cell and gamete; autosome and sex chromosomes; haploid and diploid. Describe the events that characterize each phase of meiosis. Describe three events that occur during meiosis I but not mitosis. Name and explain the three events that contribute to genetic variation in sexually reproducing organisms.arrow_forwardMeiosis is relatively rare and mitosis is relatively common. Which of the following makes meiosis different from mitosis? Meiosis produces DNA-less cells. We don't fully understand meiosis mechanisms. All gametes are diploid, whereas daughter cells from mitosis are haploid. The resulting cells (gametes) are haploid.arrow_forward
- What are the advantages and disadvantages of the alternation between fertilization and meiosis in sexually reproducing organism?arrow_forwardIn some animals, females can reproduce by themselves—that is,without males. In this process, called parthenogenesis, the youngdevelop from unfertilized eggs. Use the Internet to find a species thatuses parthenogenesis. How does parthenogenesis work in thatspecies? What are the differences between meiosis in that species andthe events of “typical” meiosis?arrow_forwardHow does meiosis maintain the number of chromosomes in a sexually reproducing species?arrow_forward
- What are some of the key differences between mitosis and meiosis? Select all that apply. Reduction division occurs in meiosis only. Mitosis produces four daughter cells and meiosis only produces two. Gametogensis occurs in mitosis only. Meiosis produces four daughter cells and mitosis only produces two. Mitosis produces cells that are genetically identical to the parent cell whereas meiosis produces cells that only have half the genetic material of the parents. Both Mitosis and meiosis produce cells that are genetically identical to the parent cell.arrow_forwardNon disjunction occurs when chromosomes fail to separate during meiosis, resulting in an abnormal number of chromosomes in the gametes. Assume an animal species has a diploid number of 4. Describe and/or show what the normal gametes would be like, and what would result from non disjunction in meiosis one, and what would result from non disjunction in meiosis two. You may use a drawing as part of your answer, but a drawing alone is not sufficient.arrow_forwardMale honeybees, which are haploid, produce sperm by meiosis.Explain what unusual event (compared with other animals) mustoccur during spermatogenesis in honeybees to produce sperm.Does this unusual event occur during meiosis I or meiosis II?arrow_forward
- The diagram below shows a cell during Meiosis II: a) What phase of Meiosis II is the cell in? How do you know? b) Assuming all of the chromosomes present during Meiosis II are shown in the figure above, how many chromosomes (counting homologous pairs as two chromosomes) does a gamete from this organism have? c) Draw the same cell during the same phase of Meiosis I. Label the elementsarrow_forwardHow many homologous pairs of chromosomes would be in the zygote if it were a male organism? Explain.arrow_forwardExamine the diagram below and answer the following questions. a) What specific stage of meiosis is this cell in? b) Exactly how many chromosomes will be in each of the 4 resulting gametes?arrow_forward
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