उत्परिवर्तन

उत्परिवर्तन क्या है?

किसी जीव के आनुवंशिक पदार्थ में अचानक परिवर्तन को उत्परिवर्तन कहा जाता है।

उत्परिवर्तन असंतत भिन्नता के स्रोत हैं।

उत्परिवर्तन सबसे पहले सेठ राइट द्वारा देखा गया था ।

वर्तमान में उत्परिवर्तन की आवृत्ति 1×10^(-6) है (1 सेल इन: 1 मिलियन - सेल)। लेकिन यह भविष्य में प्रदूषण और ओजोन परत के विनाश के कारण बढ़ेगा।

कोरोना वायरस में उत्परिवर्तन - कोरोना वायरस में म्यूटेशन धीमी है। एचआईवी की तुलना में सार्स-सीओवी-2 बहुत धीरे-धीरे बदल रहा है। उदाहरण के लिए, सेवर एक्यूट रेस्पिरेटरी सिंड्रोम (SARS) वायरस मनुष्यों में घूमने लगा, इसने एक प्रकार का उत्परिवर्तन विकसित किया जिसे विलोपन कहा जाता है जिसने शायद इसका प्रसार दिखाया हो।

उत्परिवर्तन के कारण -

• उत्परिवर्तन विशिष्ट रसायनों या विकिरण के संपर्क के कारण हो सकता है।

• अल्फा, बीटा, गामा और एक्स-रे भी उत्परिवर्तन का कारण बन सकते हैं।

• रसायन उत्परिवर्तन विकिरण से अधिक हानिकारक क्योंकि शरीर रसायन के खिलाफ की रक्षा नहीं कर रहा है कर रहे हैं।

कीटनाशक, डीडीटी, मस्टर्ड गैस, नाइट्रस एसिड रासायनिक उत्परिवर्तजन के उदाहरण हैं।

यह भी पढ़ें - काली कवक - श्लेष्मा

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YELLOW FUNGUS

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White Fungus Infection

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