Taasggatss a 20 b 22 c 24 d 25 Ishlanishi

B)140
C)105 D)150 
Ishlanishi: 
1) 1-DNK=x*0,75; 2-DNK=x; 3-DNK=x/0,8; 
2) x*0,75+x+x/0,8=420 
0,6x+0,8x+x=336 
2,4x=336 
x=140 -bu 2-DNK =>
t-RNK=AK Javob: B 
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184. 3 xil nomalum nukleotidli DNK malekulasi mavjud 
bo`lsa.Ulardan oqsil sintezlanishi uchun jami 420 ta t-RNK 
sarflangan. 2-DNK malekulasidan oqsil sintezlanishi uchun 
sarflangan t-RNKlar soni 1-DNKdan oqsil sintezlanishi uchun 
sarflangan t-RNKlar sonidan 0.75 marta kam, 3-DNKdan oqsil 
sintezlanishi uchun sarf bo`lgan t-RNKlar sonidan 0.8 marta ko`p 
bo`lsa, 1-DNK malekulasini uzunligini aniqlang.(10 ta nukleotid 
oralig`I 3.4 nm hisoblanadi) 
A)107.1
B)142.8 C)178.5 D)163.2 
Ishlanishi: 
1) 1-DNK=x*0,75; 2-DNK=x; 3-DNK=x/0,8; 
2) x*0,75+x+x/0,8=420 
0,6x+0,8x+x=336 
2,4x=336 
x=140 -bu 2-DNK
dagi t-RNK lar soni 
3) D1=D2*0,75 D1=140*0,75 D1=105 105*3=315
 
4) 315*0,34nm=
107,1nm Javob: A 
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185. 3 xil nomalum nukleotidli DNK malekulasi mavjud 
bo`lsa.Ulardan oqsil sintezlanishi uchun jami 420 ta t-RNK 
sarflangan. 2-DNK malekulasidan oqsil sintezlanishi uchun 
sarflangan t-RNKlar soni 1-DNKdan oqsil sintezlanishi uchun 
sarflangan t-RNKlar sonidan 0.75 marta kam, 3-DNKdan oqsil 
sintezlanishi uchun sarf bo`lgan t-RNKlar sonidan 0.8 marta ko`p 
bo`lsa, 2-DNK malekulasini uzunligini aniqlang.(10 ta nukleotid 
oralig`I 3.4 nm hisoblanadi) 
A)107.1 
B)142.8
C)178.5 D)163.2 
Ishlanishi: 
1) 1-DNK=x*0,75; 2-DNK=x; 3-DNK=x/0,8; 
2) x*0,75+x+x/0,8=420 
0,6x+0,8x+x=336 
2,4x=336 
x=140 -bu 2-DNK
dagi t-RNK lar soni 
3) 140*3=420
 
4) 420*0,34nm=