A) 15
B) 13
C) 12
D) 7
Correct Answer: C
Solution :
When a dihybrid cross is made and the offspring of F1 generation are self-breed, hybrid ratio is 9 : 3 : 3 : 1, where 9/16 individuals carry both the dominant traits, 3/16 first dominant and second recessive, 3/16 first recessive and second dominant and 1/16 carry both recessive traits. Therefore, the plants with first dominant is 12 out of 16.
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