Nuklein kislotalarga oid

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

2. DNK zanjirida jami nukleotidlar soni 300 ta bo’lib A lar

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

5. A+G = 80

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

8. 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’lakdagi G lar
sonini aniqlang
A) 330 C) 165 C) 110 D) 130

9.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’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

19. i-RNK zanjirida 40 ta U bo’lib barcha nukleotidlarning

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

22. 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 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