BB: B

Bb: B;b

aaBb: aB;ab

Aabb: Ab;ab

AaBb: AB;Ab;aB;ab

AA: A

Aa: A;a

AABb: AB;Ab

AaBB: AB;aB

$BB$ $gt:B$

$Bb$ $gt:B,b$

$aaBb$ $gt:aB,ab$

$Aabb$ $gt:Ab,ab$

$AaBb$ $gt:AB,Ab,aB,ab$

$AA$ $gt:A$

$Aa$ $gt:A,a$

$AABb$ $gt:AB,Ab$

$AaBB$ $gt:AB,aB$

1. Aa   : giao tử: A,a

2. AA : giao tử: A

3. Bb : giao tử: B,b

4. bb : giao tử: b

5. Aabb : giao  tử: Ab,aB

6.  aabb : giao tử : ab

7. aaBb : giao tử: aB,ab

8. AaBB : giao tử: AB,aB

9. AaBb :giao tử: AB,Ab,aB,ab

10. AaDd: giao tử: AD,Ad,aD,ad

P: AA x aa

F1:100%Aa

P: AA x aa ➜F1: 100%Aa

P:AABB x aabb ➜ F1:100%AaBb

P:AABB x Aabb ➜ F1: 1AABb:1AaBb

1. AABB x aabb = (AA x aa)(BB x bb) = (100%Aa)(100%Bb) = 100%AaBb

2.AAbb x aaBB = (AA x aa)(bb x BB) = (100%Aa)(100%Bb) = 100%AaBb

3. AaBB x AABb= (Aa x AA)(BB x Bb) = (1/2AA : 1/2Aa)(1/2BB : 1/2Bb) = 1/4AABB : 1/4AABb : 1/4AaBB : 1/4 AaBb

4. aaBb x Aabb = (aa x Aa)(Bb x bb) = (1/2Aa : 1/2aa)(1/2Bb : 1/2bb) = 1/4AaBb : 1/4Aabb : 1/4aaBb : 1/4 aabb

5. AaBb x AaBb = (Aa x Aa)(Bb x Bb) = (1/4AA: 2/4Aa:1/4 aa)(1/4BB : 2/4Bb:1/4bb) = 1/16AABB : 2/16AaBB : 2/16AABb : 4/16AaBb : 1/16AAbb : 2/16 Aabb : 1/16aaBB : 2/16aaBb : 1/16aabb

P : Aabb x aaBB

G  Ab, ab     aB

F1: 1AaBb : 1aaBb

=> Biến dị tổ hợp : AaBb, aaBb

A