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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9) If a tetraploid species gave rise to a new species by autopolyploidy, how many sets of homologous chromosomes would the new species have in its somatic cells?
a.Three
b.Two
c.Four
d.Eight
e.Sixteen
Which of the salt-marsh grasses is a polyploid? a. Spartina maritima b. Spartina alterniflora c. Hybrid between Spartina maritima and Spartina alterniflora d. Spartina anglica e. Both c and d
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.
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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- Define the following terms related to alterations of generations: a.Haploid b.Diploidarrow_forwardSpecies 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_forwardAn organism that has two different alleles for a single trait is said to be for that trait. Select one: O O O a. heterologous b. heterozygous c. homozygous d. haploid e. diploidarrow_forward
- The diagram of a gamete below depicts a single chromosome within a gamete. The bars spanning the chromosome indicate 2 genes. Considering only the two genes shown, which of the following processes was NOT capable to produce genetic diversity among the gametes of an individual? O Select all that apply: Select one or more: ✓ a. independent assortment b. sex linkage c. recombination d. mutation e. fertilizationarrow_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_forwardAn organism that has more chromosomes than is appropriate for its species is said to be O A. diploid. O B. triploid. O C. aneuploid. O D. euploid.arrow_forward
- Which 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_forwardCorn has 10 chromosomes per set, and the sporophyte of the species is diploid. If you performed a karyotype, what is the totalnumber of chromosomes you would expect to see in each of thefollowing types of cells?A. A leaf cellB. The sperm nucleus of a pollen grain C. An endosperm cell after fertilizationD. A root cellarrow_forwardWhich 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_forwardIn the experiment by Bateson and Punnett, which of the following observations suggested genetic linkage in the sweet pea a. A 9:3:3:1 ratio was observed in the F2 offspring.b. A 9:3:3:1 ratio was not observed in the F2 offspring.c. An unusually high number of F2 offspring had phenotypes ofthe parental generation.d. Both b and c suggested linkage.arrow_forward
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