According to the ABC model of floral development, which genes would be expressed in a showy ornamental flower with multiple sepals and petals but no stamens or carpels?
A) A genes only
B) B genes only
C) C genes only
D) A and B genes only
E) A and C genes only

Question

Quizplus · Accepted Answer

The ABC model of floral development explains the role of three classes of genes (A, B, and C) in determining the identity of floral organs. A genes promote the development of sepals; A and B genes together promote the development of petals; B and C genes together promote the development of stamens; and C genes alone promote the development of carpels. In a flower with multiple sepals and petals but no stamens or carpels, A and B genes would be expressed to develop sepals and petals, respectively, without the expression of C genes, which are responsible for stamens and carpels.

According to the ABC Model of Floral Development, Which Genes