Practice question
Question
In a genetic cross between two pure-line parents differing in the two independently segregating traits, plant height (tall vs dwarf) and flower color (purple vs white), all the F1 plants were tall with purple flowers. In a testcross population involving these F1 individuals, the expected percentage (%) of dwarf plants with purple flower would be _______ (in integer). (NAT)
Explanation
This outcome reflects photosynthetic regulation, where light harvesting and carbon fixation coordinate energy flow. Option NAT captures this correctly because it supports efficient energy conversion, consistent with textbook descriptions and experimental observations in plant biology.
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