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

(99-6-55) G'o'zaning hosil shoxi cheklanmagan (A), gultojibarglari sariq-limon rangdagi (B) formasi hosil shoxi cheklangan (a), gultojibarglari och sariq rangli (b) fqrmasi bilan chetishtirilganda, 1/4 qism cheklangan hosil shoxli, gultojibarglari sariq-limon . rangli, 1/4 qism cheklanmagan hosil shoxli, gultojibarglari och sariq rangli va 1/4 qism cheklangan hosil shohli, gultojibarglari och sariq rangli o'simliklar olingan. Ch'atishtirishda ishtirpk etgan ota-ona organizmlarrirng genotipini toping.

A) AABB x aabb B) AaBb x Aabb C)AaBb x aaBb D)AaBb x aabb

4. 
   AaBBxaabb
   

2. 
   (99-7-55) Aibinos quyoniarning juni oq, ko'zi qizil bo'ladi. Bunga sabab nima?
   

1. 
   bu ikki belgi bitta genning retsessiv gomozigotali holatdagi ta'siri
   
2. 
   bu ikki belgi bitta genning dominant gomozigotali holatdagi ta'siri
   
3. 
   bu ikki belgi bitta genning geterozigota holatdagi ta'siri
   
4. 
   bu ikki belgi ikkita allel bo'lmagan genning ta'siri
   
5. 
   to'g'ri javob berilmagan
   

2. 
   (00-1-3) G'o'zaning hosil shoxi cheklanmagan (A) va cheklangan (a), tolasi jigarrang (B) va oq rang (b) bo'ladi. Jigarrang tola oq tola ustidan qisman dominantlik qiladi. G'o'zaning hosil shoxi cheklanmagan, tolasi nowotrang navi hosil shoxi cheklanmagan, toiasi oq navi bilan chatishtirilganda 3/8 qism cheklarimagan hosil shoxli, tolasi oq 3/8 qism cheklanmagan hosil shoxli, tolasi nowotrang, 1/8 qism cheklangan hosil shoxli, tolasi nowotrang, 1/8 qism cheklangan hosil shoxii, tolasi oq o'simliklar olindi. Chatishtirishda ishtirok etgan ota-ona o'simliklarning genotipini aniqlang.
   

A) AaBb x Aabb B) AaBb x aabb

100. 
     aaBbxAaBb D)AABbxAaBb
     

5. 
   AaBb x AaBB
   

2.