Taasggatss a 20 b 22 c 24 d 25 Ishlanishi

B)139
C)104 D)149 
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) 140-1=
139P Javob: B 
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181. 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, 3-DNKdagi aminokislatalar sonini aniqlang. 
C)105_D)150_Ishlanishi'>A)175
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
dagi t-RNK lar soni 
3) D3=D2/0,8 D3=140*0,8 D3=
175AK Javob: A 
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182. 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-DNKdagi aminokislatalar sonini aniqlang. 
A)175 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
dagi t-RNK lar soni 
3) D1=D2*0,75 D1=140*0,75 D1=
105AK Javob: C 
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183. 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-DNKdagi aminokislatalar sonini aniqlang. 
A)175