Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 11, Problem 18RQ
Many farmers are worried about the decreasing genetic diversity of plants associated with generations of artificial selection and inbreeding. Why is limiting random sexual reproduction of food crops concerning?
- Mutations during asexual reproduction decrease plant fitness
- Consumers do not trust identical-appearing produce
- Larger portions of the plant populations are susceptible to the same diseases
- Spores are not viable in an agricultural setting.
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Seedless vascular plants must reproduce when conditions are wet because their sperm must_______________ . Two adaptations that allow seed plants to reproduce more efficiently on dry land are_________ and_________ . The seed plants fall into two major categories: the nonflowering_______________ and the flowering_________ . Flowers were favored by natural selection because they__________ . Fruits were favored by natural selection because they_____________ .
Many plants can be produced as genetically identical clones by asexual reproduction. Although advantageous in some ways, such genetically plants can be a disadvantage when ________.
-a disease is present in the environment
-the environment is stable
-mates are in short supply
-pollinators are absent
Sexual reproduction in plants is considered to be a source of variation creation. How reproduction mechanisms played their role in creating variation and also give view regarding the mechanism that could be responsible for causing a different type of pollination
Chapter 11 Solutions
Biology 2e
Ch. 11 - Figure 11.9 If a mutation occurs so that a fungus...Ch. 11 - Meiosis usually produces___daughter___ cells. two...Ch. 11 - What structure is most important in forming the...Ch. 11 - At which stage of meiosis are sister chromatids...Ch. 11 - At metaphase I, homologous chromosomes are...Ch. 11 - Which of the following is not true in regard to...Ch. 11 - What phase of mitotic interphase is missing from...Ch. 11 - The part of meiosis that is similar to mitosis is...Ch. 11 - If a muscle cell of atypical organism has 32...Ch. 11 - Which statement best describes the genetic content...
Ch. 11 - The pea plants used in Mendel’s genetic...Ch. 11 - How do telophase I and telophase II differ during...Ch. 11 - What is a likely evolutionary advantage of sexual...Ch. 11 - Which type of life cycle has both a haploid and...Ch. 11 - What is the ploidy of the most conspicuous form of...Ch. 11 - A diploid, multicellular life-cycle stage that...Ch. 11 - Hydras and jellyfish both live in a freshwater...Ch. 11 - Many farmers are worried about the decreasing...Ch. 11 - Describe the process that results in the formation...Ch. 11 - Explain how the random alignment of homologous...Ch. 11 - What is the function of the fused kinetochore...Ch. 11 - In a comparison of the stages of meiosis to the...Ch. 11 - Why would an individual with a mutation that...Ch. 11 - Does crossing over occur during prophase II? From...Ch. 11 - List and briefly describe the three processes that...Ch. 11 - Animals and plants both have diploid and haploid...Ch. 11 - Explain why sexual reproduction is beneficial to a...Ch. 11 - How does the role of meiosis in gamete production...Ch. 11 - How do organisms with haploid-dominant life cycles...
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