Biology: The Unity and Diversity of Life (MindTap Course List)
Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
bartleby

Concept explainers

Question
Book Icon
Chapter 17, Problem 1DAA
Summary Introduction

To determine: The town with most of the rats susceptible to warfarin.

Introduction: Rodenticides are the pesticides that have the capability to kill the whole rodent species. Rodents have their own importance in nature but sometimes require some control over their population, as they could transmit disease, destroy crops, and may cause ecological damage. Warfarin is a common anticoagulant that could be used as a rodenticide to kill mice and rats. After its discovery, warfarin has been widely used, and later, it resulted in the development of warfarin-resistant mice and rats.

Expert Solution & Answer
Check Mark

Answer to Problem 1DAA

Correct answer: The town with the most rats susceptible to warfarin was Town Lud.

Explanation of Solution

As given in the problem statement, researchers in the year 2000 tested the development of rodenticide resistance in wild rat populations among five towns (Town Olf, Town Sta, Town Dor, Town Lud, and Town Dre) of Germany. They used two rodenticides namely warfarin and recently developed bromadiolone. The obtained data as per the results shown in the Fig 17.6 are as follows:

  • In Town Olf, 58% of rat populations were resistant to both warfarin and bromadiolone. 21% of rats were resistant to warfarin alone, and equal percentages (21%) of rats were susceptible to warfarin or bromadiolone.
  • In Town Sta, 87% of rat populations were resistant to both warfarin and bromadiolone. 8% of rats were resistant to warfarin alone. Only 5% of the rats were susceptible to warfarin or bromadiolone.
  • In Town Dor, 56% of rats among the population were resistant to the rodenticide warfarin, and 44% of them were not susceptible to warfarin or bromadiolone.
  • In Town Lud, the whole populations of rat (100%) were susceptible to warfarin or bromadiolone.
  • In Town Dre, about 90% of rats were susceptible to warfarin or bromadiolone. Only 5% was resistant to both warfarin and bromadiolone, and 5% was resistant to warfarin alone.

From the given data, it can be concluded that in Town Lud, most of the rat populations were susceptible or not resistant to rodenticide (warfarin or bromadiolone).

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
The ability to roll your tongue is a dominant genetic trait passed on from generation to generation. Tongue rolling is the ability to roll the lateral edges of your tongue upward into a tube. The frequency of the tongue rolling trait was collected from 1,000 individuals each year 1925 to 2000 and is show in the data table below. Year Tongue Rolling Inability to Roll Tongue 1925 67% 33% 1950 68% 32% 1975 63% 37% 2000 67% 33%   (a)   Determine if the human population was in equilibrium from 1925 to 2000. Justify your response. (b)   (b)  Discuss how the Hardy Weinberg Principle can be used to determine whether this population is evolving (c)   (c)  Identify and describe THREE factors that would affect whether the population of Tongue Rollers is in Hardy Weinberg equilibrium. (d)   (d)  A scientist recently stated a claim that it is unlikely that the inability to roll your tongue will disappear from the population. Provide reasoning to explain…
A population of lizards in Northern California is brown and is not poisonous to birds. A population of lizards in Southern California is orange and is poisonous to birds. In central California, where the two species overlap, a new species of non-poisonous, orange lizards arose. Which of the following statements best explains the existence of non-poisonous orange lizards? A) Non-poisonous brown lizards changed color once they noticed birds did not eat orange lizards. B) Non-poisonous orange lizards have a selective advantage since birds avoid orange lizards. C) Non-poisonous lizards turn orange by eating orange flowers and then pass the trait on D) Non-poisonous orange lizards have a selective disadvantage since they cannot blend in. E) Non-poisonous brown lizards are more attractive to mates.
Several studies concluded that there is great heterogeneity in biting frequency, meaning that some people/populations get bitten a whole lot while others are fairly rarely bitten.  Which of the following statements concerning these observations is probably WRONG?   The variability in R0 shows that this measure really has limited value, it is too variable If we can identify the people that are bitten most, a strategy could focus on protecting/curing those people Eradication may not be possible in populations where R0 is very high
Knowledge Booster
Background pattern image
Biology
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning