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Which one of the following phenomena supports Darwin's concept of natural selection in organic evolution?
- a)Development of transgenic animals
- b)Production of 'Dolly', the sheep by cloning
- c)Prevalence of pesticide resistant insects
- d)Development of organs from 'stem cells' for organ transplantation
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Which one of the following phenomena supports Darwins concept of natur...
Prevalence of pesticide resistant insects supports natural selection theory, e.g., DDT was thought to be an effective insecticide against household pests (like mosquitoes, houseflies, body lice, etc.) in 1945. But, within 2 to 3 years of its introduction, new DDT resistant mosquitoes appeared in the population. These mutant strains, soon became well established in the population by natural selection and thus replaced the original DDT - sensitive mosquitoes.
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Which one of the following phenomena supports Darwins concept of natur...
Understanding Natural Selection
Natural selection, a key mechanism of evolution proposed by Charles Darwin, explains how certain traits become more common in a population due to their advantageous nature in a given environment.
Example of Pesticide Resistant Insects
The phenomenon of pesticide resistance in insects serves as a clear example of natural selection in action.
Key Points:
- Genetic Variation: Within a population of insects, there is genetic variation. Some individuals may have mutations that confer resistance to specific pesticides.
- Survival of the Fittest: When pesticides are applied, the resistant individuals are more likely to survive and reproduce. The non-resistant insects die off, reducing their numbers.
- Reproductive Success: The surviving resistant insects pass on their resistant traits to their offspring, increasing the frequency of these advantageous traits in the next generation.
- Adaptation: Over time, the population evolves to become predominantly resistant to the pesticide, demonstrating adaptation to the selective pressure imposed by human intervention.
Contrast with Other Options
- Transgenic Animals: While they demonstrate genetic manipulation, they do not illustrate natural selection as they involve human intervention rather than natural processes.
- Dolly the Sheep: Cloning is a form of asexual reproduction and does not involve natural selection as it does not rely on variation and survival.
- Stem Cells in Organ Development: This process focuses on tissue engineering and does not relate to natural selection as it is artificially induced.
Conclusion
Thus, the prevalence of pesticide-resistant insects is a compelling example of Darwin's natural selection, highlighting how environmental pressures can lead to evolutionary change in populations.
Natural selection, a key mechanism of evolution proposed by Charles Darwin, explains how certain traits become more common in a population due to their advantageous nature in a given environment.
Example of Pesticide Resistant Insects
The phenomenon of pesticide resistance in insects serves as a clear example of natural selection in action.
Key Points:
- Genetic Variation: Within a population of insects, there is genetic variation. Some individuals may have mutations that confer resistance to specific pesticides.
- Survival of the Fittest: When pesticides are applied, the resistant individuals are more likely to survive and reproduce. The non-resistant insects die off, reducing their numbers.
- Reproductive Success: The surviving resistant insects pass on their resistant traits to their offspring, increasing the frequency of these advantageous traits in the next generation.
- Adaptation: Over time, the population evolves to become predominantly resistant to the pesticide, demonstrating adaptation to the selective pressure imposed by human intervention.
Contrast with Other Options
- Transgenic Animals: While they demonstrate genetic manipulation, they do not illustrate natural selection as they involve human intervention rather than natural processes.
- Dolly the Sheep: Cloning is a form of asexual reproduction and does not involve natural selection as it does not rely on variation and survival.
- Stem Cells in Organ Development: This process focuses on tissue engineering and does not relate to natural selection as it is artificially induced.
Conclusion
Thus, the prevalence of pesticide-resistant insects is a compelling example of Darwin's natural selection, highlighting how environmental pressures can lead to evolutionary change in populations.
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Which one of the following phenomena supports Darwins concept of natural selection in organic evolution?a)Development of transgenic animalsb)Production of Dolly, the sheep by cloningc)Prevalence of pesticide resistant insectsd)Development of organs from stem cells for organ transplantationCorrect answer is option 'C'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which one of the following phenomena supports Darwins concept of natural selection in organic evolution?a)Development of transgenic animalsb)Production of Dolly, the sheep by cloningc)Prevalence of pesticide resistant insectsd)Development of organs from stem cells for organ transplantationCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following phenomena supports Darwins concept of natural selection in organic evolution?a)Development of transgenic animalsb)Production of Dolly, the sheep by cloningc)Prevalence of pesticide resistant insectsd)Development of organs from stem cells for organ transplantationCorrect answer is option 'C'. Can you explain this answer?.
Which one of the following phenomena supports Darwins concept of natural selection in organic evolution?a)Development of transgenic animalsb)Production of Dolly, the sheep by cloningc)Prevalence of pesticide resistant insectsd)Development of organs from stem cells for organ transplantationCorrect answer is option 'C'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which one of the following phenomena supports Darwins concept of natural selection in organic evolution?a)Development of transgenic animalsb)Production of Dolly, the sheep by cloningc)Prevalence of pesticide resistant insectsd)Development of organs from stem cells for organ transplantationCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following phenomena supports Darwins concept of natural selection in organic evolution?a)Development of transgenic animalsb)Production of Dolly, the sheep by cloningc)Prevalence of pesticide resistant insectsd)Development of organs from stem cells for organ transplantationCorrect answer is option 'C'. Can you explain this answer?.
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Which one of the following phenomena supports Darwins concept of natural selection in organic evolution?a)Development of transgenic animalsb)Production of Dolly, the sheep by cloningc)Prevalence of pesticide resistant insectsd)Development of organs from stem cells for organ transplantationCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for Which one of the following phenomena supports Darwins concept of natural selection in organic evolution?a)Development of transgenic animalsb)Production of Dolly, the sheep by cloningc)Prevalence of pesticide resistant insectsd)Development of organs from stem cells for organ transplantationCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of Which one of the following phenomena supports Darwins concept of natural selection in organic evolution?a)Development of transgenic animalsb)Production of Dolly, the sheep by cloningc)Prevalence of pesticide resistant insectsd)Development of organs from stem cells for organ transplantationCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
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