Question
समजात पुनर्योजन के हॉलिडे मॉडल का वर्णन कीजिए।
Answer :
Word Count : 416
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समजात पुनर्योजन (Homologous Recombination) एक ऐसी प्रक्रिया है, जिसमें समान (होमोलॉगस) क्रोमोसोमल या डीएनए अनुक्रमों के बीच आनुवंशिक सामग्री का आदान-प्रदान होता है। यह प्रक्रिया विशेष रूप से डीएनए की मरम्मत के लिए महत्वपूर्ण होती है, जैसे कि द्विगुणित (double-strand) टूटने की मरम्मत में। हॉलिडे मॉडल (Holiday model) समजात पुनर्योजन की एक प्रमुख व्याख्या प्रदान करता है, जिसे जे. एम. हॉलिडे ने 1964 में प्रस्तावित किया था। हॉलिडे मॉडल में, समजात पुनर्योजन की प्रक्रिया में दो क्रोमोसोमल या डीएनए स्ट्रैंड्स (एक में और दूसरे में) एक-दूसरे के
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