Genes do not control growth directly.Instead,genes regulate physical development by means of

Question

Quizplus · Accepted Answer

Genes regulate physical development indirectly through the activity of neural and hormonal systems. These systems are responsible for directing growth and differentiation of tissues and organs throughout the body. Chromosomal blueprints provide the overall genetic code for the development of an organism, but it is the activity of the nervous and endocrine systems that ultimately determine how this code is expressed in terms of physical development. Cephalocaudal and proximodistal directives refer to general patterns of growth and differentiation in terms of body regions, but they do not represent direct regulatory mechanisms controlled by genes.

Genes Do Not Control Growth Directly