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

(00-5-51) Tovuqlarda R - p genlar gulsimon, r - P genlar no'xatsimon,

R - P genlar yong'oqsimon, r - p genlar oddiy tojni hosil qiladi. Tovuqnirig ycngloqsimon o.” tojliformasioddiytojlixo'riozbilan chatishtirilganda, quyidagicha natija olingan. Jo'jalarning 50% i yong'oqsimon, 50% i no'xatsimon tojli bo'lgan. Chatishtirishda ishtiroleetgan tovuq va xo'roziarning genotipini aniqlang.

1. 
   RRPp x rrpp B) RRPP- X rrpp ■ ■■ .
   

100. 
     RrPP x rrpp D) RrPp x rrpp
     

5. 
   Rrpp x rrPp
   

2. 
   (05-1-533) Qovoq mevasi etining oq rangi (B) sariq rangT(b) ustidan, mevasining disksimon shakli (D) yumaloq shakli
   

(d) ustidan dominantlik qiladi. Quyidagi chatishtirishlaming qaysi birida 1:1:1:1 nisbatda oq disksimon, oq yumaloq, sariq disksimon, sariq yumaloq mevalar olinadi?

1) BbDD x BbDd; 2) BbDd x bbdd;

3) BBDD x bbdD; 4) Bbdd x bbDd;

4. 
   bbDd x BbDD.
   

A)1,2 B)2,5,3 C)2,3,4

4. 
   2, 4 E)2, 5
   

2.