NEET Biology question
TtRr represents (heterozygous tall, heterozygous pink). If this plant is self crossed then (T-dominant, t-recessive, R-dominant, r-recessive, with R showing incomplete dominance so that = pink): I. 25% plant have red flower; II. 25% plant have white flower; III. 50% plant have pink flower; IV. 50% plant are tall. Choose the correct option
Answer: (B)
Solution
Since the flower-colour gene () assorts independently of the height gene (), self-crossing gives, for flower colour alone, the standard incomplete-dominance ratio of , i.e., 25% red, 50% pink, and 25% white —
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