A. 4
B. 1
C. 3
D. 2
D
Đáp án D
Tỉ lệ 8: 4: 4: 2: 2: 1: 1: 1: 1 = (1: 4: 1) x (1: 2: 1)
(1) AaaaBBbb x AAAABBBb → (1:1) x (1: 5: 5: 1)
(2) AaaaBBbb x AAAaBbbb. → (1: 2: 1) x (1: 5: 5: 1)
(3) AAAaBBbb x Aaaabbbb → (1: 2: 1) x (1: 4: 1)
(4) AaaaBBbb x AAAABBBb → (1:1) x (1: 5: 5: 1)
(5) AaaaBBbb x AAAaBbbb → (1: 2: 1) x (1: 5: 5: 1)
(6) AaaaBBBB x AaaaBBbb → (1: 2: 1) x (1: 4: 1)
(7) AAAaBbbb x AAAABBBb. → (1: 1) x (1: 2: 1)
(8) AAaaBBbb x Aaaabbbb → (1: 5: 5: 1) x (1: 4 : 1)
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