What term best describes programs and procedures designed to modify traits in domesticated species?

• A. Genetic drift
• B. Artificial selection
• C. Gene flow
• D. Natural selection

Answer: (B)

Verified step by step guidance

1. Understand the key terms in the question: 'Genetic drift,' 'Artificial selection,' 'Gene flow,' and 'Natural selection.' Each term refers to a specific mechanism or process in biology that affects traits in populations.
2. Define 'Artificial selection': This is the process by which humans intentionally select for or against certain traits in domesticated species, such as crops or animals, to achieve desired characteristics. It is a human-driven process.
3. Define 'Genetic drift': This refers to random changes in allele frequencies in a population, often having a more significant effect in small populations. It is not directed or intentional.
4. Define 'Gene flow': This is the transfer of genetic material between populations, often through migration or interbreeding. It does not involve intentional modification of traits.
5. Define 'Natural selection': This is the process by which traits that confer a survival or reproductive advantage become more common in a population over time. It is driven by environmental pressures, not human intervention.