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Sana : ________
Nazorat ishi -2.
Umumbiologik qonuniyatlarga doir masala va mashqlar yechish.
1-variant.
1.Bir zanjirda GGSSTTAAAGSTTSGA nukleotidlar ketma-ketligi bo`lgan DNK molekulasidagi vodorod bog`lar sonini aniqlang? __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
2. Tarkibida 400 ta aminokislota bo`lgan oqsillning molekulyar massasi qanchaga teng?(aminokislotalarning malekulyar massasi Mr=138 gr/mo’l) _________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
3. DNK molekulasining tarkibida 1320 ta adenin nukleotidi bor. Adenin nukleotidlari umumiy nukleotidlarning 33% ni tashkil qilsa, DNKning uzunligi necha nm bo’ladi? _________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
4. DNK molekulasining tarkibida 1222 adenin nukleotidi bor. Adenin nukleotidi umumiy nukleotidlarning 26%-ini tashkil qilsa, bu holda DNK ning tarkibida umumiy nukleotidlarning soni nechtaga teng ? ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
5. DNK molekulasi tarkibida (T) timin nukleotidi umumiy zanjirining 16% ni tashkil etadi .Qolgan nukleotidlarning har biri necha foizini tashkil qiladi ? ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Do'stlaringiz bilan baham: | 
