Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Chapter 24, Problem 7TYK
Summary Introduction
Introduction: Polyploid species arise due to interbreeding of two different species. The hybrids may propagate asexually, but they are sterile due to complications in the mitotic division of gametes.
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Chapter 24 Solutions
Study Guide for Campbell Biology
Ch. 24 - Prob. 1IQCh. 24 - Fill in the following table to review three of the...Ch. 24 - a. A new plant species 8 forms by autopolyploidy...Ch. 24 - a. Differentiate between allopatric and sympatric...Ch. 24 - Use the following diagrams to explain the three...Ch. 24 - Prob. 6IQCh. 24 - Prob. 1SYKCh. 24 - Prob. 2SYKCh. 24 - What does the term punctuated equilibria describe?Ch. 24 - Prob. 1TYK
Ch. 24 - Prob. 2TYKCh. 24 - Prob. 3TYKCh. 24 - Which of the following is not a mechanism...Ch. 24 - Prob. 5TYKCh. 24 - Prob. 6TYKCh. 24 - Prob. 7TYKCh. 24 - Prezygotic barriers to reproduction between...Ch. 24 - A botanist identifies a new species of plant that...Ch. 24 - Which of the following would not contribute to...Ch. 24 - Morphological and genetic comparisons group 30...Ch. 24 - Prob. 12TYKCh. 24 - This chapter introduced several research studies...
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- Which of the following is a benefit of meiosis? A. The generation of offspring with the exact genetic material of the parents ensures the offspring are well-liked to their environment. B. The independent assortment of alleles increases genetic diversity, which allows the species to evolve. C. The separation of chromatids in meiosis creates offspring with only the most desirable traits, which increases the likelihood of species survival. D. The use of meiosis in reproduction allows for the rapid production of many offspring, which increases the odds of species survival.arrow_forwardDefine the following terms related to alterations of generations: a.Haploid b.Diploidarrow_forwardPea plants have seven different types of chromosomes. A chromosome with a centromere at the very end is called a. submetacentric. b. acentric. c. acrocentric. d. metacentric. e. telocentric.arrow_forward
- Species I is diploid (2 n = 4) with chromosomes AABB; related species II is diploid (2 n = 6) with chromosomes MMNNOO. Give the chromosomes that would be found in individuals with the following chromosome mutations: a. Autotriploidy in species I.b. Allotetraploidy including species I and II.c. Monosomy in speciesI.d. Trisomy in species II for chromosome M.e. Tetrasomy in species I for chromosome A.f. Allotriploidy including species I and II.g. Nullisomy in species II for chromosome N.arrow_forwardHumans produce skin cells by mitosis and gametes by meiosis. Which of the following statements about the nuclei of skin cells is correct? a. They contain half as much DNA as the nuclei of gametes produced by meiosis. b. They contain four times as much DNA as the nuclei of gametes produced by meiosis. c. They contain the same amount of DNA as the nuclei of gametes produced by meiosis. d. They contain twice as much DNA as the nuclei of gametes produced by meiosis.arrow_forwardWhich of the following is correct as the polyploidization mechanism? options: A, Two related species mate, forming an organism with the combined chromosomes from both parents. B. A single-celled embryo duplicates its chromosomes, but they are not separated into separate cells and remain in a single cell that develops into a viable embryo. C. Both A and B D. Neither A nor Barrow_forward
- Which of the following mechanisms are important for generating new genotypes in species that reproduce sexually? a. Chromosome Inversions b. Crossing Over c. Independent Assortment d. Both a. and b. e. Both b. and c.arrow_forward. According to the law of independent assortment,a. all possible combinations of factors can occur in thegametes.b. only the parental combinations of gametes can occur in thegametes.c. only the nonparental combinations of gametes can occur in thegametes.arrow_forwardExplain the terms haploid, diploid, and polyploid. Why is polyploidy so much more common in plants than in animals? Give examples of polyploid animals. Polyploid plants may occur naturally or they may be created intentionally by agricultural scientists. List four examples of polyploid commercial crops and explain why they are superior to their diploid ancestors.arrow_forward
- Which of the following statements accurately represents the difference between a gene and a locus? a. A gene is dominant, and a locus is recessive. b. A locus and a gene are essentially the same - there is no difference. c. A locus occurs in diploid cells, and a gene occurs in a haploid cell. d. A locus is a phenotype and a gene is a genotype.arrow_forwardA plant has a genotype AaBb. there is no linkage of the genes. the gametes it will produce are: A) AB and ab B) Aa and Bb C) AA, aa, BB and Bb D) AB, Ab, aB and abarrow_forwardIn Iowa, a company called Team Corn works to ensure that fields of seed corn outcross so that hybrid vigor can be maintained. They do this by removing the staminate (that is, pollen-producing) flowers from the corn plants. In an attempt to put Team Corn out of business, you would like to develop genetically engineered corn plants that a. contain Z genes to prevent germination of pollen on the stigmatic surface. b. contain S genes to stop pollen tube growth during selffertilization. c. express B-type homeotic genes throughout developing flowers. d. express A-type homeotic genes throughout developing flowers.arrow_forward
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