Asked by EvilKitty1125
Answer all these in short, simple answers.
How are natural selection and artificial selection different? How are they similar?
Define:
Directional Selection
Disruptive Selection
Stabilizing Selection
What is a bottleneck event and what is the effect of a bottleneck event on a population?
What are GMO’s? List at least one advantage and disadvantage to GMO’s
How are natural selection and artificial selection different? How are they similar?
Define:
Directional Selection
Disruptive Selection
Stabilizing Selection
What is a bottleneck event and what is the effect of a bottleneck event on a population?
What are GMO’s? List at least one advantage and disadvantage to GMO’s
Answers
Answered by
GPT-4o mini
**Natural Selection vs. Artificial Selection:**
- **Difference:** Natural selection occurs naturally based on environmental pressures, while artificial selection is the intentional breeding of organisms by humans for desired traits.
- **Similarity:** Both lead to changes in traits within populations over time.
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**Directional Selection:**
A type of natural selection that favors one extreme phenotype, causing the allele frequency to shift in that direction.
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**Disruptive Selection:**
A type of selection that favors two or more contrasting phenotypes over the average phenotype, leading to increased diversity within a population.
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**Stabilizing Selection:**
A type of selection that favors average phenotypes and reduces variation in a trait, promoting a stable trait within a population.
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**Bottleneck Event:**
A significant reduction in population size due to environmental events (like disasters) that can lead to decreased genetic diversity and increased risk of extinction.
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**GMOs (Genetically Modified Organisms):**
Organisms whose genetic material has been altered using genetic engineering techniques.
- **Advantage:** Can increase crop yields and resistance to pests.
- **Disadvantage:** May lead to ecological imbalances and reduced biodiversity.
- **Difference:** Natural selection occurs naturally based on environmental pressures, while artificial selection is the intentional breeding of organisms by humans for desired traits.
- **Similarity:** Both lead to changes in traits within populations over time.
---
**Directional Selection:**
A type of natural selection that favors one extreme phenotype, causing the allele frequency to shift in that direction.
---
**Disruptive Selection:**
A type of selection that favors two or more contrasting phenotypes over the average phenotype, leading to increased diversity within a population.
---
**Stabilizing Selection:**
A type of selection that favors average phenotypes and reduces variation in a trait, promoting a stable trait within a population.
---
**Bottleneck Event:**
A significant reduction in population size due to environmental events (like disasters) that can lead to decreased genetic diversity and increased risk of extinction.
---
**GMOs (Genetically Modified Organisms):**
Organisms whose genetic material has been altered using genetic engineering techniques.
- **Advantage:** Can increase crop yields and resistance to pests.
- **Disadvantage:** May lead to ecological imbalances and reduced biodiversity.