A pesticide is applied to an insect pest and soon the insect becomes resistant to the pesticide. Use Darwind 5 postulates describing natural selection to explain the steps by which the pesticide became less and less effective.

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Jarrod RobelLv2

3 Mar 2019

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For many years, antibiotics have been effectively used to treatbacterial disease; and pesticides have been used to protect ouragricultural crops from many kinds of pests, including insects,worms (nematodes), fungi, or agricultural weeds, for example.

A growing concern for treating bacterial diseases or pest outbreaksis the evolution of antibiotic or pesticide resistance by bacterialor pest populations. Resistance means that a particular antibioticis no longer effective in treating a disease, or that a particularpesticide will no longer prevent crop damage. This resistance canbe viewed as evolution of a new trait at the population level,which is resistance to an antibiotic or to a pesticide. In thisassignment, you will explore specific examples of antibiotic orpesticide resistance.

Assignment details:

After reading materials about evolution and about antibiotic andpesticide resistance in the text, the Course Materials, the AIUOnline Library and / or the Internet, answer the following.

1.Select and describe one example of antibiotic resistance orpesticide resistance. Be specific in your choice.

â¦Describe the background for your choice of resistance. Includedetails about the disease or pest and the established controlstrategies. How have we used antibiotics (to treat a particulardisease), or pesticides (to protect from a pest); and how has thischanged?

2.Explain how the resistant trait evolved based on principles ofnatural selection and evolution of a trait at the populationlevel.

3.For your specific example, what are the consequences ofresistance in terms of human health or crop loss / damage?

4.What steps can be taken to prevent or slow down the evolution ofantibiotic or pesticide resistance? Do you think we will succeed indoing so? Why or why not?

viridiancricket950

Select and describe one example of antibiotic resistance orpesticide resistance. Be specific in your choice.
Describe the background for your choice of resistance. Includedetails about the disease or pest and the established controlstrategies. How have we used antibiotics (to treat a particulardisease), or pesticides (to protect from a pest); and how has thischanged?
Explain how the resistant trait evolved based on principles ofnatural selection and evolution of a trait at the populationlevel.
For your specific example, what are the consequences of resistancein terms of human health or crop loss / damage?
What steps can be taken to prevent or slow down the evolution ofantibiotic or pesticide resistance? Do you think we will succeed indoing so? Why or why not?
Provide references in APA format

brownjackal896

A novel fungicide is introduced and widely applied to cerealcrops. After five years, resistant genotypes of the fungal pathogenare detected at a frequency of about 1%; resistance is widelydistributed across the pathogenâs range. Within two years, thesehave become so common that the fungicide becomes worthless.

Explain how this pattern can be explained by the basic featuresof natural selection. Include in your answer:

A brief description of what natural selection is.

The conditions that must be met in order for natural selectionto occur.

How natural selection explains the scenario above.

-Please Reference sources