Diduragay chatishtirishga oid masalalar

DIDURAGAY CHATISHTIRISHGA OID MASALALAR

1) Genetik belgilash:

Sariq don AA Yashil don aa Tekis gultoj BB Burishgan bb

Qizil gultoj CC Oq gultoj cc

2) P: ota-onalarni o`zaro chatishtiramiz:

a)♀AaBbCc x ♂aabbcc

♂ ♀ ABC ABc AbC Abc aBC aBc abC abc

abc AaBbCc AaBbcc AabbCc Aabbcc aaBbCc aaBbcc aabbCc aabbcc

3) Fenotip va genotipni aniqlaymiz.

fen: 1:1:1:1:1:1:1:1 gen: 1:1:1:1:1:1:1:1

b) ♀AaBbCC x ♂aaBBCc

♂ ♀ ABC AbC aBC abC

aBC AaBBCC AaBbCC aaBBCC aaBbCC

aBc AaBBCc AaBbCc aaBBCc aaBbCc

fen: 1:1 gen: 1:1:1:1:1:1:1:1

No‘xat donining sariq rangi (A) yashil rangi (a), tekisligi (B) burishganligi (b), gultojibargining qizil rangi (C) oq rangi (c) ustidan dominantlik qiladi. Quyidagicha genotipga ega formalarni chatishtirish natijasida hosil bo‘lgan no‘xatning fenotipini aniqlang: