Chapter 23.6, Problem 2SB

Summary Introduction

To review:

The evidence that suggests that many developmental control genes have been conserved by evolution.

Introduction:

Regardless of the position in the tree of life, most of the animals share homeobox genes that control their development. A large group of similar genes that help in the formation of the structures of the body, either by activating or repressing the expression of other genes, is called homeobox genes. These are collectively clubbed as a “genetic tool kit” that has conserved the developmental control genes through evolution.