Here is the ABC hypothesis of the impact of genes A,B,and C on floral part development:
i."A" genes are switched on in the two outer whorls (sepals and petals).
ii."B" genes are switched on in the two middle whorls (petals and stamens).
iii."C" genes are switched on in the inner two whorls (stamens and carpels).
Which of these genes are active for petals?

Question

Quizplus · Accepted Answer

Gene A is active in sepals and petals, while gene B is active in petals and stamens. Therefore, option B – genes i and ii – are active for petals.

Here Is the ABC Hypothesis of the Impact of Genes