Tuxumdonda urug'lanish jarayoni sodir bo'lganidan so'ng tuxum hujayra bachadon.,-■ nayiga o'tib, rivojlanishni davom ettiradi

(v13-123-26) DNK molekulasida adenin va timin orasida ikkita, guanin va sitozin orasida uchta vodorod bog' bor, qo'shni nukieotidlar orasi 0,34 nm ga teng, Ma'lum DNK bo'lagida 1050 ta vodorod bog' bo'lib, shundan 60% guanin va sitozin orasida bo'lsa, shu DNK bo'iagidagi purin va pirimidinlar sonini toping.

1. 
   A = 210, T = 210, C = 210, U = 0
   
2. 
   A = 420, T = 420, G = 630, C = 630
   
3. 
   G = 420, C = 420, A = 210, T = 210
   
4. 
   A = 210, T = 210. G = 280, C = 280
   

52. 
    (v13-124-27) Moddalar almashinuvining ikkinchi bosqichida sodir bo'ladigan jarayonlarni aniqlang.
    

1. 
   oksidlanish; 2) translyatsiya; 3) Proteazalar faoliyati; 4) lipazaning lipidlarga ta'siri;
   

5) reduplikatsiya; 6) amilazaning ta'siri; 7) oziqning mexanik o'zgarishi;

8) transkripsiya; 9) karbonat arigidridning o'pkalar tomonidan ajratilishi; 10) fotosintez;

2. 
   achish; 12) glikoliz.
   

1. 
   1,2, 4, 6,11
   
2. 
   1,5, 8, 10
   
3. 
   2, 6, 7, 9, 10
   
4. 
   1,3,4,7,12
   

53.