In the ABC model of flower development in Arabidopsis thaliana,sepals form when which gene(s)is/are switched on?
A) A only
B) A and B
C) B and C
D) C only
E) A and B and C

Question

In the ABC model of flower development in Arabidopsis thaliana,sepals form when which gene(s)is/are switched on?  
A) A only
B) A and B
C) B and C
D) C only
E) A and B and C

Quizplus · Accepted Answer

According to the ABC model, sepals are formed when only the A gene is switched on. Specifically, the A gene encodes a transcription factor that binds to DNA and activates genes involved in sepal development. The B and C genes are involved in later stages of flower development, including the formation of petals and reproductive structures.

In the ABC Model of Flower Development in Arabidopsis Thaliana,sepals