Murakkab boshoq (1), murakkab shingil (b) to‟pgullar qaysi o‟simliklarga xos?
otquloq; b) rovoch; c) sholi;d) arpa; e) javdar; f) bug‟doyiq; g) zubturum
1-a,b,c; 2-d,e,f
1-a,e,f; 2-b,c,d
1-c,d,e; 2-a,b,f
1-d,e,f;2-a,b,c
DNK fragmeti tarkibida A va G soni nisbati 12:2holatda.Ushbu dnk tarkibida T soni 1200tani tashkil qilsa ushbu dnk uzunligini aniqlang A)238 B)476 C)486 D)496
Yechimi: Doim A=T bo„ladi shu sababdan T -1200ta bo„lsa A ham 1200tani tashkil etadi
A G
12 2. Nisbatda
1200taga x=200ta
Demak
A-----1200ta T 1200ta
G-----1200TA S 200ta
Jami:1200+1200+200+200=2800ta
2800ta 2ta zanjirda
1400=x 1ta zanjirda
1ta nukleotid 0,34nm
1400ta nukleotid x=476nm