Evolution of Antibiotic or
For many years, antibiotics have
been effectively used to treat bacterial disease; and pesticides have been used
to protect our agricultural 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 outbreaks is the evolution of antibiotic or
pesticide resistance by bacterial or pest populations. Resistance means that a
particular antibiotic is no longer effective in treating a disease, or that a
particular pesticide will no longer prevent crop damage. This resistance can be
viewed as evolution of a new trait at the population level, which is resistance
to an antibiotic or to a pesticide. you will explore specific examples of
antibiotic or pesticide resistance.
Answer the following.
1.Select and describe one example
of antibiotic resistance or pesticide resistance. Be specific in your choice.
Describe the background for your
choice of resistance. Include details about the disease or pest and the
established control strategies. How have we used antibiotics (to treat a
particular disease), or pesticides (to protect from a pest); and how has this
2.Explain how the resistant trait
evolved based on principles of natural selection and evolution of a trait at
the population level.
3.For your specific example, what
are the consequences of resistance in terms of human health or crop loss /
4.What steps can be taken to
prevent or slow down the evolution of antibiotic or pesticide resistance? Do
you think we will succeed in doing so? Why or why not?