What is the process called in which humans select certain traits when breeding a plant, which are desirable to humans, but not necessarily advantageous to the plant?

Question

BlackTom AI · Accepted Answer

Artificial selection is the deliberate breeding of organisms by humans to enhance traits that are desirable to people, even if those traits reduce fitness in the wild.

1. Relevant knowledge points and concepts
- Selection: a process that changes trait frequencies in a population. Two main types are natural selection (environment-driven) and artificial selection (human-driven).
- Selective breeding: humans choose parents with preferred traits to produce offspring that amplify those traits across generations.
- Trade-offs: traits favored by humans (e.g., larger fruit, seedlessness, extreme coat colors) can be maladaptive for survival or reproduction without human care.

2. Step-by-step reasoning
- Identify the actor of selection: the question specifies “humans select certain traits,” so the selecting agent is people.
- Identify the nature of traits: they are “desirable to humans” but “not necessarily advantageous to the plant,” which implies selection is based on human preference rather than environmental fitness.
- Match this scenario to terminology: selection driven by human preference is called artificial selection (also known as selective breeding).

3. Intermediate steps (conceptual)
- Natural selection would require the environment to favor traits because they increase survival/reproduction — not the case here.
- Crossbreeding describes mixing genetic material of different breeds/varieties but does not capture the deliberate, repeated choice for specific traits.
- “Selectivism” is not a standard biological term for this process.

4. Why the correct answer is correct
Artificial selection exactly describes humans choosing which individuals reproduce to fix desirable traits, such as larger fruits, sweeter flavors, or seedless varieties—traits that may reduce a plant’s ability to survive or disperse seeds in nature.

5. Why the other options are incorrect
- Natural Selection: driven by environmental pressures, not human preference.
- Crossbreeding: a method of combining genetics, not the general process of choosing traits across generations.
- Selectivism: not a recognized biological term for selective breeding.

6. Conclusion
The correct answer is Artificial Selection, which matches the provided answer.

What is the process called in which humans select certain traits when breeding a plant, which are desirable to humans, but not necessarily advantageous to the plant?单项选择题

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