Nuklein kislotalarga oid o’rta darajadagi savollar
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O'RTA DARAJADAGI MASALALAR
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Nuklein kislotalarga oid o’rta darajadagi savollar 1. DNK fragmentida barcha nukleotidlar teng miqdorda va ular 158 ta fosrodiefir bog’lar yordamida birlahgan Shu DNK ning barcha vodorod bo’g’lar sonini toping A) 200 B) 160 C) 220 D) 180
soni S lar sonidan 2 marta kam. G nukleotidlari sonini aniqlang A) 200 B) 150 C) 100 D) 50 3.DNK zanjirida jami 1200 vodorod (H) bog’ mavjud bo’lib, ularning 30 %i A ni T ga bog’lab turadi shu malumotga asosan. S lar sonini hisoblang A) 420 B) 280 C) 360 D) 180 4. Agar DNK da 40 ta Adinin 40 % ni tashkil etsa shu DNK ning uzunligini aniqlang A) 17 B) 34 C) 51 D) 102
S+ T =80
G+ S= 60 A+ T = ?
A) 80 B) 100 C) 120 D) 70 6. DNK zanjirida A lar 64 ta G+ S+ T= 172 bo’lsa, Shu DNK da G va S o’rtasida nechta vodorod bog’ mavjud ? A) 172 B) 162 C) 258 D) 108 7. DNK ning malum bir bo’lagida barcha H bog’lar soni 660 ta bo’lib A T o’rtasidagi H bog’lar soni G S o’rtasidagi H bog’lar soniga teng. Shu bo’lakning uzunligini aniqlang A) 93.5 B) 187 C) 112.2 D) 56.1
660 ta bo’lib A T o’rtasidagi H bog’lar soni G S o’rtasidagi H bog’lar soniga teng. Shu bo’lakdagi G lar sonini aniqlang A) 330 C) 165 C) 110 D) 130
660 ta bo’lib A T o’rtasidagi H bog’lar soni G S o’rtasidagi H bog’lar soniga teng. Shu bo’lakdagi fosfodiefir bog’lar sonini aniqlang sonini aniqlang A) 660 B) 598 C) 328 D) 548 10. DNK zanjirida A lar 64 ta S va T larning yeg’indisi 100 ga teng bo’lsa Shu DNK ni uzunligini (nm) aniqlang A) 80.24 B) 40.12 C) 17 D) 34 11. DNK da jami 5600 ta nukleotid mavjud A va T lar juftligi G va S lar juftligidan 1.5 marta ko’p Shu fragmentda G lar sonini toping A) 3360 B)2240 C) 1680 D) 1120 12. DNK da jami 5600 ta nukleotid mavjud A va T lar juftligi G va S lar juftligidan 1.5 marta ko’p Shu fragmentda barcha H bog’lar sonini toping A) 7280 B) 5598 C) 6720 D) 7660 13. DNK zanjirida A lar soni G lar soniga teng bo’lib, S lar soni 88 ta bo’lsa shu DNK uzunligini Aº(angestrim)da hisoblang A) 59,84 B) 1196.8 C) 219.6 D) 598.4 14. i- RNK zanjirida nukleotidlar quydagi sonda uchraydi: A 43 ta , U 32 , S 56 G 44 bo’lsa Shu zanjirning uzunligini (nm)aniqlang A) 29.75 B) 59.5 C) 14.87 D) 44.6 15. i- RNK zanjirida nukleotidlar quydagi sonda uchraydi: A 43 ta , U 32 , S 56 G 44 bo’lsa Shu zanjirning fosfodiefir bog’lar sonini aniqlang A) 173 B) 174 C) 176 D) 177 16. i- RNK zanjirida nukleotidlar quydagi sonda uchraydi: A 43 ta , U 32 , S 56 G 44 bo’lsa Shu zanjirning H bog’lar sonini aniqlang A) 173 B) 0 C) 174 D) 176 17. i- RNK zanjirida nukleotidlar quydagi sonda uchraydi: A 43 ta , U 32 , S 56 G 44 bo’lsa DNK zanjirida G lar sonini hisoblang A) 75 B) 88 C) 87 D) 100 18. i-RNK zanjirida 40 ta U bo’lib barcha nukleotidlarning 20 % ini tashkil etadi shu RNK uzunligini hisoblang A) 68 B) 34 C) 51 D) 27.2
20 % ini tashkil etadi, G lar 30 % ni , S lar 25 % ni Tashki letsa shu RNK dagi A lar sonini aniqlang A) 60 B) 50 C) 40 D) 80 20. i-RNK zanjirida 40 ta U bo’lib barcha nukleotidlarning 20 % ini tashkil etadi, G lar 30 % ni , S lar 25 % ni tashkil etsa DNK zanjiridagi T lar sonini aniqlang A) 90 B) 50 S) 100 D) 110 21. 2040 Aͦº uzunlikdagi DNK da nechta fosfodiefir bog’ mavjud ? A) 2398 B) 119 C) 1198 D) 2038
orasidagi H bog’lar soni G va S o’rasidagi H bo’g’lar sonidan 3 marta kam. Barcha H bo’g’lar sonini hisoblang A) 8000 B) 660 C) 800 D) 700 23. DNK da barcha nukleotidlar soni 600 ta. A va T lar orasidagi H bog’lar soni G va S o’rasidagi H bo’g’lar sonidan 4.5 marta kam. Barcha H bo’g’lar sonini hisoblang A) 825 B) 750 C) 800 D) 880 Oqsil biosinteziga oid dastlabki masalalar 24. Qanday og’irlikdagi Oqsilda 66 ta peptid bog’ bo’ladi? A) 7800 B) 8160 C) 8040 D) 6000 25. Agar oqsilda 71 ta peptid bog’ mavjud bo’lsa shu oqsillni sintezlashda qatnashgan i- RNK da nechta triplet (kod) mavjud. A) 70 C) 210 C) 72 C) 216 26. Agar oqsilda 71 ta peptid bog’ mavjud bo’lsa shu oqsillni sintezlashda qatnashgan i- RNK uzunligini (nm) aniqlang A) 71.4 C) 36.72 C) 73.44 D) 72.42 27 Agar oqsilda 71 ta peptid bog’ mavjud bo’lsa, shu oqsillning geni (DNK ) da fosfodiefir bog’lar sonini aniqlang A) 430 C) 426 C) 215 D) 216 28. DNK molekulasida 1500 ta nukleotid bo’lsa, unda qanday og’irlikdagi oqlining axboroti saqlanadi ? A) 180000 B) 60000 C) 30000 D) 90000
sintezlangan oqsilda peptid bog’lar soni qaysi javobda to’g’ri ko’rsatilgan ? A) 1498 B) 749 C) 249 D) 1499 30. Agar oqsil 9600 Da bo’lsa uni sintezlashda ishtrok etgan i-RNK zanjirida fosfodiefir bog’lar sonini aniqlang A) 28799 B) 79 C) 239 D) 478
oqslining axboroti joylashgan. ? A) 12000 B) 24000 C) 3600 D) 72000 32. Uzunligi 51 nm bo’lgan DNK dan transkripsiyalangan RNK da nechta triplet- kod mavjud ? A) 102 B) 50 C) 150 D) 300
jarayonida qanday og’irlikdagi oqsil sintezlanadi ? A) 6000 B) 18000 C) 12000 D) 9600 34. I -RNK da 179 fosfodiefir bog’ mavjud bo’lsa, translyatsiya jarayonida sintezlangan oqsilning peptid bog’lar sonini aniqlang A) 600 B) 58 C) 59 D) 30 35. Oqsilda 99 peptid bog’ mavjud bo’lsa Shu oqsilni axborotini o’zida saqlagan gen (DNK ) uzunligini aniqlang A) 598 B) 204 C) 102 D) 51 36. Oqsilda 99 ta fosfodiefir bog’ mavjud bo’lsa Shu oqsilni axborotini o’zida saqlagan gen (DNK ) tarkibida fosfat kislotalar sonini aniqlang A) 598 B) 599 C) 600 D) 1800 37. Oqsilda aminokislotalar soni 172 ta bo’lsa uni sintezlashda ishtrok etgan i- RNK uzunligi hisoblang A)58.48 B) 29.24 C) 175.44 D) 87.72
30 % ini tashkil etadi shu DNK asosida sintezlangan oqsil qanday og’irlikga ega ? A) 6000 B) 9000 C) 12000 D) 6900 39. i-RNK zanjirida 60 U bo’lib barcha nukleotidlarning 20 % ini tashkil etadi, G lar 30 % ni , S lar 25 % ni tashkil etsa Undan qanday og’irlikdagi oqsil sintezlanadi A) 10000 B) 12000 C) 6000 D) 24000
va ular 358 ta fosrodiefir bog’lar yordamida birlahgan Shu DNK dan qanday og’irlikdagi oqsil sintezlangan A) 7200 B) 11600 C) 14400 D) 10000 41. Interferon oqsilining axborotini o’zida saqlagan DNK molekulasida jami 1800 juft nukleotid mavjud undagi A va T lar juftligi G va S juftligidan 3.5 marta kam, shu DNK fragmentida A va T o’rtasidagi vodorod bog’lar barcha H bog’larning necha % ini tashkil etadi ? A) 24 % B) 16 % C) 38 % D) 12 %
va ular 900 ta vodorod bog’ yordamida o’zaro birlashgan. Shu gen asosida qanday og’irlikdagi oqsil sintezlanadi ? A) 12600 B) 14400 C) 18200 D) 27000
bu oqsilning axborotini o’zida saqlagan gen qanday uzunlikga ega ?, Agar shu gen tarkibida 160 ta sitozin bo’lsa jami vodorod bog’lar soni nechchiga teng ? A) 130.56 nm, 928 H bog’ B) 115.5 nm, 948 H bog’ C) 130.56 nm 992 H bog’ D) 115.5 nm 544 H bog’
va 777 ta G mavjud ? A) 488.6 B) 245.8 C) 977.2 D) 491.6
3 marta kam, S lar T lardan 3 marta ko’p bo’lsa, G lar sonini aniqlang A) 3000 B) 1000 C) 1500 D) 2000 Download 50 Kb. Do'stlaringiz bilan baham: 
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