Artificial Selection - AP Biology
- What is a limitation of artificial selection?
- Potential loss of genetic diversity. Narrow focus reduces adaptive flexibility of populations.
- What is selective breeding?
- The process of choosing specific organisms to breed for desired traits. Controlled breeding to enhance specific heritable traits.
- Which trait might be artificially selected in dairy cows?
- Higher milk yield. Economic trait improving dairy farm profitability.
- Name a benefit of artificial selection in agriculture.
- Improved crop yields. Selected traits increase agricultural productivity and food security.
- Which organism is a classic example of artificial selection?
- Domesticated dogs. Thousands of years of human-directed breeding created dog breeds.
- What impact does artificial selection have on evolution?
- It accelerates changes in phenotypes. Human selection speeds up phenotypic changes over generations.
- What is a potential negative consequence of artificial selection?
- Increased vulnerability to diseases. Reduced diversity makes populations more susceptible to pathogens.
- What is one method used for artificial selection in plants?
- Cross-pollination. Controlled breeding technique to combine desired genes.
- Name a common example of artificial selection in agriculture.
- Selective breeding of crops like corn for yield traits. Farmers select high-yielding plants for breeding programs.
- Identify an outcome of artificial selection in domesticated animals.
- Increased milk production in dairy cattle. Cows bred for high milk production over generations.
- What is a selective pressure in artificial selection?
- Human preference for specific traits. Human desires replace environmental pressures in selection.
- What is the goal of artificial selection?
- To enhance specific desirable traits in organisms. Humans breed organisms to amplify beneficial characteristics.
- Name a trait targeted in ornamental plant breeding.
- Flower size. Visual appeal drives ornamental plant breeding decisions.
- Identify a benefit of artificial selection in livestock.
- Improved meat quality. Animals bred for better taste, texture, and nutrition.
- What is artificial selection?
- Artificial selection is the human-driven breeding for desirable traits. Humans select parents with desired traits to pass to offspring.
- Define a selective breeding program.
- A system where specific traits are targeted for breeding. Organized approach to improving organism characteristics.
- Name a factor influencing trait selection in artificial selection.
- Market demand. Economic value drives which traits humans select for.
- What is a common goal of artificial selection in horticulture?
- Enhanced flower color or shape. Ornamental plants bred for aesthetic appeal to consumers.
- What is the result of artificial selection on genetic diversity?
- Reduction in genetic diversity. Focusing on few traits reduces allelic variation.
- Which term defines the desired traits in artificial selection?
- Selective traits. Specific characteristics humans want to enhance through breeding.
- Identify a scientific field that benefits from artificial selection.
- Genetic research. Model organisms created through selective breeding programs.
- Identify a commonly selected trait in poultry farming.
- Egg production. Economically important trait in commercial poultry operations.
- Which characteristic is often targeted in artificial selection of crops?
- Disease resistance. Resistant plants survive pathogens and produce better yields.
- Identify an example of artificial selection in pets.
- Breeding dogs for specific coat colors. Breeders select parents with preferred coat colors.
- What does artificial selection rely on?
- Genetic variation among individuals. Natural variation provides raw material for selection programs.
- Which process involves human intervention in reproduction?
- Artificial selection. Humans control mating to influence offspring traits.
- Identify a consequence of long-term artificial selection.
- Fixed alleles and reduced adaptability. Inbreeding reduces variation and adaptive potential.
- What is a genetic bottleneck?
- Reduced genetic diversity due to selective breeding. Population loses alleles when only certain individuals breed.
- What is one ethical concern with artificial selection?
- Potential welfare issues for animals. Extreme breeding can cause health problems in animals.
- Which term describes breeding animals for specific traits?
- Selective breeding. Process of choosing parents based on desired phenotypes.
- What is an objective of artificial selection in aquaculture?
- Increased growth rate of fish. Faster growth improves aquaculture efficiency and profits.
- Which practice is used to control traits in animal breeding?
- Pedigree selection. Breeding records track inheritance of desired characteristics.
- What is one advantage of artificial selection?
- Development of desirable traits more quickly. Human selection accelerates trait development compared to nature.
- Identify a trend in artificial selection of food crops.
- Enhanced nutritional content. Breeding for health benefits and consumer preferences.
- What role do humans play in artificial selection?
- Humans choose which traits are desirable and breed accordingly. Humans act as selective agents determining reproductive success.
- Which process involves humans selecting traits in organisms?
- Artificial selection. Only humans consciously choose breeding pairs for traits.
- Which process can lead to exaggerated traits in organisms?
- Artificial selection. Human preferences can amplify extreme phenotypes.
- Identify a trait commonly selected for in livestock.
- Growth rate. Faster growth means quicker market readiness and profits.
- Identify a primary difference between artificial and natural selection.
- Artificial selection is driven by humans, natural selection by environmental pressures. Selection agents differ: humans vs. environment.
- What is a common goal of artificial selection in forestry?
- Faster growth rates. Trees selected for rapid wood production and harvest cycles.