الاستاذ كرار نجف / أحياء السادس | United States America (US)

Create: 2024-04-15 Update: 2024-05-03 18:48:57

المحاضرة الحادي عشر الفصل الخامس ( وراثة) امثلة واجب رقم 11
1- مثال1/ كلاب مكسيكية عديمة الشعر لقحت اناث ذا شعر فكان جميع الناتج ذكوراً نصفهم عديم الشعر والأخر ذا شعر ما هو ناتج التلقيح الرجعي للأفراد الناتجة ؟

2- مثال2/ تركت فئران صفر ملتوية الذنب للتزاوج فيما بينها وعند ملاحظة الافراد الناتجة كان هنالك افراد ذات ذنب عادي ؟ ماهي الطرز الوراثية والمظهرية للجيل الأول ؟ وما نسبة الافراد الميتة ؟ وما نوع الوراثة لكلا الصفتين ؟ اذا علمت ان صفة الذنب الملتوي سائدة .

3- مثال3/ ضرب ذكر ذبابة فاكهة رمادي اللون منفرج الجناحين بانثى ابنوسية منطبقة الجناحين (اعتيادية) ظهر في الناتج افراد ابنوسية ومنفرجة الجناحين . ما هي الطرز الوراثية والمظهرية لجميع الافراد ؟

4- مثال4/ اجري تزاوج بين ديك زاحف ودجاجة مجهولة فكان ربع الناتج ميت ما الطرز الوراثية للأفراد ؟

الاستاذ كرار نجف / أحياء السادس

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الاستاذ كرار نجف / أحياء السادس

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المحاضرة الحادي عشر الفصل الخامس ( وراثة) امثلة واجب رقم 11

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