Which of the following is not usually involved in the development of a new morphology?
A)evolution of a new gene to code for the new morphology
B)homeosis
C)heterochrony
D)changes in signaling pathways
E)changes in the regulatory sequence of a transcription factor gene

Question

Quizplus · Accepted Answer

The evolution of a new gene to code for a new morphology would be involved in the development of a new trait, but it is not usually involved in the development of a new morphology. Instead, changes in the regulation of gene expression, such as changes in signaling pathways, heterochrony, and changes in the regulatory sequences of transcription factor genes can all contribute to the development of novel morphologies. Homeosis refers to the transformation of one body part into another, which can also contribute to the development of new morphologies.

Which of the Following Is Not Usually Involved in the Development