Which of the following statements about the evolution of insect wing patterns is false?
A)In insects,scales are evolutionarily derived from bristles.
B)Scales and bristles are regulated by the same underlying mechanisms.
C)Wing patterns,such as eyespots,are derived through the action of homologous genes on the distribution of scales in the wing.
D)Wing pattern development has involved co-option of existing control programs for new functions.
E)The gene sets whose functions have been co-opted to control wing pattern development differ in different insects.

Question

Quizplus · Accepted Answer

While scales are derived from bristles in insects, this is not the statement that is false. The statements that scales and bristles are regulated by the same underlying mechanisms, that wing pattern development involves co-option of existing control programs for new functions, and that the gene sets whose functions have been co-opted to control wing pattern development differ in different insects are all true. However, wing patterns such as eyespots are not derived through the action of homologous genes on the distribution of scales in the wing. Instead, these patterns are thought to arise from the interactions between signaling molecules and transcription factors that control the expression of genes involved in pigmentation and scale development.

Which of the Following Statements About the Evolution of Insect