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

(v15-113-33) Sog'lom odarrining somatik - hujayrasida mitozning profaza bosqichida autosoma xromosomalari (a) va jami xromatidalari (b) sonini aniqlang.

1. 
   a-44, b-92 B) a-44, b-46
   

C) a-88, b-92 D) a-22, b-46

60. 
    (v15-114-15) Qaysi organizmiarda sitokenez jaraVoni hujayra sitoplazmasi o'rtasida sitoplazmatik membranadan iborat to'siq hosil bo'lishi bilan boradi?
    

1. 
   jo'ka; 2) lyupin; 3) sargan; 4) kallima;
   

5. 
   yo'ng'ichqa; 6) rishta; 7) semga;
   

8. 
   plaun; 9) ayiqtovon; 10) skerda; 11)buk;
   

12) chupchik; 13) ebalak; 14) vidra.

1. 
   2, 5, 8, 10,11,13
   
2. 
   3, 4, 6, 7, 12, 14
   
3. 
   1,5. 6, 7, 9, 12, 14
   
4. 
   1, 2, 3, 4, 8, 9
   

60. 
    (v15-114-24) O'simlik hujayralarida maxsus ferment markazlari ishi mitozhing qaysi bosqichida boshlanadi?
    

1. 
   profaza bosqichida
   
2. 
   anafaza bosqichining boshida
   
3. 
   telofaza bosqichida
   
4. 
   metafaza bosqichining oxirida
   

60. 
    (v15-121-18) Uy tovug'ining xromosomalari to'plami n = 39 bo'lsa, uning teri hujayrasida reduplikatsiya jarayonjdan so'ng xromosomalar soni nechta bo'ladi?
    

1. 
   78 B)117 C) 195 D)156
   

60.