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Who proposed that the first form of life could have come from pre-existing nonliving organic molecules?
- a)SL Miller
- b)Oparin and Haldane
- c)Charles Darwin
- d)Alfred Wallace
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Who proposed that the first form of life could have come from pre-exis...
Origin of Life Theory
The idea that the first form of life could have emerged from pre-existing nonliving organic molecules is primarily attributed to scientists Alexander Oparin and John Haldane. Their theories laid the groundwork for understanding the chemical origins of life.
Oparin and Haldane's Hypothesis
- Abiogenesis Concept: Oparin and Haldane proposed that life originated from simple organic compounds that gradually evolved into more complex molecules, ultimately leading to living organisms.
- Primordial Soup: They suggested that the early Earth had a "primordial soup" rich in organic molecules, which, under the influence of energy sources (like UV radiation or lightning), could lead to the synthesis of more complex organic compounds.
- Self-Replication: They theorized that these organic molecules could undergo self-replication and evolve, eventually leading to the formation of the first primitive cells.
Significance in Evolutionary Biology
- Foundation for Future Research: Their ideas inspired numerous experiments, including those by Stanley Miller, who simulated early Earth conditions and produced amino acids, the building blocks of life.
- Evolutionary Implications: Oparin and Haldane's concepts have far-reaching implications in evolutionary biology, as they suggest a gradual transition from non-living to living matter.
Conclusion
The theories of Oparin and Haldane remain influential in the field of biochemistry and the study of life's origins. Their work emphasizes the importance of nonliving organic molecules as precursors to the first forms of life, shaping our understanding of how life may have begun on Earth.
The idea that the first form of life could have emerged from pre-existing nonliving organic molecules is primarily attributed to scientists Alexander Oparin and John Haldane. Their theories laid the groundwork for understanding the chemical origins of life.
Oparin and Haldane's Hypothesis
- Abiogenesis Concept: Oparin and Haldane proposed that life originated from simple organic compounds that gradually evolved into more complex molecules, ultimately leading to living organisms.
- Primordial Soup: They suggested that the early Earth had a "primordial soup" rich in organic molecules, which, under the influence of energy sources (like UV radiation or lightning), could lead to the synthesis of more complex organic compounds.
- Self-Replication: They theorized that these organic molecules could undergo self-replication and evolve, eventually leading to the formation of the first primitive cells.
Significance in Evolutionary Biology
- Foundation for Future Research: Their ideas inspired numerous experiments, including those by Stanley Miller, who simulated early Earth conditions and produced amino acids, the building blocks of life.
- Evolutionary Implications: Oparin and Haldane's concepts have far-reaching implications in evolutionary biology, as they suggest a gradual transition from non-living to living matter.
Conclusion
The theories of Oparin and Haldane remain influential in the field of biochemistry and the study of life's origins. Their work emphasizes the importance of nonliving organic molecules as precursors to the first forms of life, shaping our understanding of how life may have begun on Earth.
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Community Answer
Who proposed that the first form of life could have come from pre-exis...
This theory was given by A. L.Oparin and J.B.S. haldane !!!
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Who proposed that the first form of life could have come from pre-existing nonliving organic molecules?a)SL Millerb)Oparin and Haldanec)Charles Darwind)Alfred WallaceCorrect answer is option 'B'. 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 Who proposed that the first form of life could have come from pre-existing nonliving organic molecules?a)SL Millerb)Oparin and Haldanec)Charles Darwind)Alfred WallaceCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Who proposed that the first form of life could have come from pre-existing nonliving organic molecules?a)SL Millerb)Oparin and Haldanec)Charles Darwind)Alfred WallaceCorrect answer is option 'B'. Can you explain this answer?.
Who proposed that the first form of life could have come from pre-existing nonliving organic molecules?a)SL Millerb)Oparin and Haldanec)Charles Darwind)Alfred WallaceCorrect answer is option 'B'. 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 Who proposed that the first form of life could have come from pre-existing nonliving organic molecules?a)SL Millerb)Oparin and Haldanec)Charles Darwind)Alfred WallaceCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Who proposed that the first form of life could have come from pre-existing nonliving organic molecules?a)SL Millerb)Oparin and Haldanec)Charles Darwind)Alfred WallaceCorrect answer is option 'B'. Can you explain this answer?.
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