Question
अंत:सहजीवन सिद्धांत का वर्णन कीजिए। इस सिद्धांत की पुष्टि करने वाले प्रमाणों की चर्चा कीजिए।
Answer :
Word Count : 448
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Skip in 10
अंत:सहजीवन सिद्धांत का विकास पौधों की उत्पत्ति और उनके विकास को समझाने के लिए किया गया था। यह सिद्धांत मुख्य रूप से एंसेल कॉईलेर (A. G. C. Coelre) और लिंडनबर्ग (Lindenberg) जैसे वैज्ञानिकों द्वारा प्रस्तुत किया गया। इस सिद्धांत के अनुसार, बहुत ही प्राचीन समय में कुछ स्वतंत्र रूप से रहने वाले सूक्ष्मजीव या कोशिकाएं, जैसे बैक्टीरिया या सायनोबैक्टीरिया, अन्य बड़े कोशिकाओं के अंदर निवास करने लगीं। यह संबंध अंतःसहजीवी (endosymbiotic) रूप में विकसित हुआ, जिससे धीरे-धीरे नई कोशिकीय संरचनाएं और अंगाणु उत्पन्न हुए। सिद्धांत यह मानता है कि कुछ प्रमुख कोशिकीय अंग, जैसे माइटोकॉन्ड्रिया और क्लोरोप्लास्ट, कभी स्वतंत्र जीव थे, जो बाद में अन्य कोशिकाओं में शामिल
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