Question
न्यूरोस्पोरा में सेंट्रोमियर मानचित्रण का वर्णन करें।
Answer :
Word Count : 455
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न्यूरोस्पोरा एक हाप्लॉइड कवक है जिसका जीवन चक्र सरल होने के कारण आनुवंशिकी के अध्ययन में इसका विशेष महत्व है। इसमें यौन जनन के दौरान होने वाली मियोसिस और उसके बाद की एक माइटोटिक विभाजन के परिणामस्वरूप आठ एस्कोस्पोर एक ही एस्कस में क्रमबद्ध रूप से बनते हैं। यही क्रमबद्ध एस्कोस्पोर सेंट्रोमियर मानचित्रण को संभव बनाते हैं। सेंट्रोमियर मानचित्रण का तात्पर्य किसी जीन की सेंट्रोमियर से दूरी ज्ञात करना है, जिससे गुणसूत्र पर उस जीन की सापेक्ष स्थिति निर्धारित की जा सके। न्यूरोस्पोरा में सेंट्रोमियर मानचित्रण का आधार “फर्स्ट डिवीजन सेग्रिगेशन”
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