D) 2398 Ishlanishi: 1) N=AK*3 N=400*3=1200N*2=2400N -2 ta ipdagi N lar
2) 2400---100%
G-x---40% G-x=(2400*40)/100=960N G-960=960-S
3) 960----40%
A-x---10% A-x=(960*10)/40=240 A-240=240-T
4)
A+G=N 240+960=1200 -1 ta ipdagi N lar
5) F=(N-1)2N-2 F=(2*1200)-2=
2398F Javob: D _____________________________ 231. DNK ning qo'sh zanjirida G nukleotidlari 40%ni tashkil
etadi. DNK dagi gen asosida sintezlangan oqsil 400 ta
aminokislotadan iborat bo'lsa, shu DNK qo'sh zanjiri asosida
sintezlangan i-RNKdagi fosfodiefir bog'lari sonini toping,
(nukleotidlar o'zaro fosfodiefir bog' orqali bog'lanadi)
A) 2398
B) 1199 C) 2399 D) 2400
Ishlanishi: 1) N=AK*3 N=400*3=1200N*2=2400N -2 ta ipdagi N lar
2) 2400---100%
G-x---40% G-x=(2400*40)/100=960N G-960=960-S
3) 960----40%
A-x---10% A-x=(960*10)/40=240 A-240=240-T
4)
A+G=N 240+960=1200 -1 ta ipdagi N lar
5) F=(N-1)2N-2 F=1200-1=
1199F Javob: B _____________________________ 232. DNK ning zanjirida 960 ta guanin nukleotidi bo‘lib umumiy
nukleotidlarning 40% ini tashkil etadi. Undagi gen asosida
sintezlangan oqsildagi peptid bog’lari sonini toping.
A) 390 B) 400 C) 398
D) 399 Ishlanishi: 1) G-960------40%
A-x----10% A-x=(960*10)/40=240
2) A+G=960+240=1200N
3) 1200N/3=400AK
4) Peptid=AK-1 Peptid=400-1=
399P Javob: D _____________________________ 233. Oqsil molekulasida 41 ta peptid bog’i bor. Ushbu DNK
bo‘lagi asosida sintezlangan oqsildagi aminokislotalar sonini
aniqlang.
A) 40 ta B) 41 ta C) 43 ta
D) 42 ta Ishlanishi: 1) AK=Peptid+1 AK=41+1=
