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Science & Tech

رغم تنافرها.. صور غير مسبوقة تكشف كيف تترابط جزيئات الحمض النووي

By روسيا اليوم · 14 hours ago · 1 min read روسيا اليوم ↗

رغم تنافرها.. صور غير مسبوقة تكشف كيف تترابط جزيئات الحمض النووي

ملخص الخبر

كشفت صور مجهرية ومحاكاة حاسوبية عن دور الأيونات الموجبة كوسط يربط جزيئات الحمض النووي المتنافرة.
تساعد أيونات النيكل والمغنيسيوم والكالسيوم في تكوين جسور تربط الجزيئات وتثبيتها بالقرب من بعضها.
تؤثر ترتيبات القواعد في الحمض النووي على استقرار الروابط، مما يساعد في فهم كيفية تبادل المعلومات الوراثية.
تعد هذه النتائج أول دليل مرئي على فرضية علمية قد تساعد في فهم تنظيم المادة الوراثية داخل الخلايا.

ملخص كتبه الذكاء الاصطناعي من نص الخبر في مصدره.

كشف باحثون من جامعتي شيفيلد ويورك في المملكة المتحدة عن دليل مرئي يوضح كيف يمكن لجزيئات الحمض النووي (DNA) أن تتراص بإحكام رغم تنافر شحناتها الكهربائية السالبة.

المصدر: روسيا اليوم

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