Which of the following best illustrates FEEDBACK in development

Options

A. As tissue (X) develops, it secretes something that slows down the growth of tissue (Y)
B. Tissue (X) secretes RNA which changes the development of tissue (Y)
C. As tissue (X) develops, it secretes enzymes that inhibit the development of tissue (Y)
D. As tissue (X) develops, it secretes something that induces tissue (Y) to develop

Answer

D

Explanation

Feedback in development is mainly induction by developed tissue to form another tissue