Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Textbook Question
Chapter 17.2, Problem 1CYL
- describe the main types of premating and postmating reproductive isolating mechanisms?
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Chapter 17 Solutions
Biology
Ch. 17.1 - One way to determine the number of species on...Ch. 17.1 - Prob. 1TCCh. 17.1 - The tiny frog paedophryne amauensis was discovered...Ch. 17.1 - describe how biologists define species and explain...Ch. 17.1 - describe the biological species concept and...Ch. 17.1 - list some reasons why it can be hard to tell...Ch. 17.2 - describe the main types of premating and...Ch. 17.2 - provide examples of each type of mechanism?Ch. 17.3 - Make a list of events or processes that could...Ch. 17.3 - How might conservation scientists use the map...
Ch. 17.3 - It is not surprising that the forests of New...Ch. 17.3 - Prob. 3TCCh. 17.3 - Prob. 4TCCh. 17.3 - Prob. 5TCCh. 17.3 - One possible explanation for the distinctive...Ch. 17.3 - describe the two general steps that are required...Ch. 17.3 - explain the difference between allopatric and...Ch. 17.3 - explain adaptive radiation and describe the...Ch. 17.3 - interpret an evolutionary tree diagram?Ch. 17.4 - If specialization puts a species at risk for...Ch. 17.4 - Prob. 1CTCh. 17.4 - describe the main causes of extinction?Ch. 17.4 - Prob. 2CYLCh. 17.4 - Given that genetic isolation is the first step in...Ch. 17 - The biological species concept is difficult or...Ch. 17 - Which of the following does not describe a...Ch. 17 - All instances of speciation require a. genetic...Ch. 17 - Analysis of Rhagoletis fly populations in North...Ch. 17 - In the initial phase of allopatric speciation,...Ch. 17 - A species is a group of ________ that evolves...Ch. 17 - Fill in the following with the appropriate...Ch. 17 - Formation of a new species occurs when two...Ch. 17 - The process by which many new species arise in a...Ch. 17 - A species may be at higher risk of extinction if...Ch. 17 - Define the following terms: species, speciation,...Ch. 17 - Many of the oak tree species in central and...Ch. 17 - Review the material on the possibility of...Ch. 17 - A drug called colchicine prevents cell division...Ch. 17 - What are the two major types of reproductive...Ch. 17 - It is difficult to perform experiments that test...
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- How is the frequency of cotransduction related to the relative position of genes on a bacteial chromosome? Draw a map of three genes and describe the expected relationship of cotransduction frequencies to the map.arrow_forwardExplain the significance of reproductive isolating mechanisms and distinguish among the various prezygotic and postzygotic barriers.arrow_forwardDescribe three ways variation can be introduced into offspring produced by sexual reproduction.arrow_forward
- How does variation arise in an asexually reproducing population? Asexually reproducing population?arrow_forwardWhat are reproductive barriers? How do premating and postmating barriers differ?arrow_forwardEnumerate and give at least 5 unique mechanisms employed by organisms in order to determine the sex of the offspring. In each case, give an example of a species which represent such a scheme of producing sex(y) descendants. Put reference Mechanism Example 1 2 3 4 5 What evolutionary forces drive the turnover of these sex determination mechanisms?arrow_forward
- What is the Red Queen Dynamic? Using the snail example, explain why different parasite and host genotypes are expected to oscillate in frequency? Why would this favor sexual reproduction or outcrossing?arrow_forwardExplain the Prezygotic Isolating Mechanisms ?arrow_forwardPlease discuss the fitness advantage associated with aiding a related or even an unrelated individual with producing offspring. Please give examples.arrow_forward
- Would you predict that the Pingelapesepopulation is in Hardy-Weinberg equilibrium? How would you measure this?arrow_forwardWhat is the “cost of males” in outcrossing reproducing species compared to obligate self-fertilizer or asexually reproducing species?arrow_forwardGive at least 3 reproductive (prezygotic) isolating mechanisms? Briefly discuss how it isolates individuals.arrow_forward
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