Artificial Selection: Shaping Life
Explore the principles, history, and applications of artificial selection in shaping domesticated species and its impact on biodiversity.
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Artificial Selection: Shaping Life
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Read each question carefully and provide concise, well-reasoned answers. For multiple-choice questions, select the best option. For short answer and essay questions, use complete sentences and provide specific examples where appropriate.
1. Which of the following best defines artificial selection?
The process by which organisms better adapted to their environment tend to survive and produce more offspring.
The intentional breeding of plants and animals by humans for specific desirable traits.
The random changes in allele frequencies in a population over time.
The movement of genes from one population to another.
2. Which of the following is an example of artificial selection?
Antibiotic resistance in bacteria.
The development of different dog breeds from wolves.
The Galapagos finches developing different beak shapes.
The evolution of pesticide resistance in insects.
3. Artificial selection is often contrasted with selection, which occurs without human intervention.
4. The wild ancestor of all domestic dog breeds is believed to be the .
5. One major goal of artificial selection in agriculture is to increase crop or disease resistance.
6. Explain the key difference between artificial selection and natural selection, providing an example for each.
7. The image below shows various dog breeds. Discuss how artificial selection has led to such diverse phenotypes from a common ancestor. Consider the traits that humans might have selected for.
8. Artificial selection always results in organisms that are better adapted to survive in the wild.
True
False
9. Genetic engineering is a form of artificial selection.
True
False
10. Discuss the ethical implications and potential benefits and drawbacks of using artificial selection in modern biotechnology and agriculture. Provide at least two specific examples to support your points.