Chapter 19.4, Problem 2R

Summary Introduction

To Review:

The importance of bone morphogenetic protein 4 (BMP4) in the formation of beak using the results obtained by the experiment performed in the question.

Given:

In the given experiment, researchers introduced varying concentration of BMP4 protein in the embryo’s beak grown region and measured the size of the beak after the development. The table given below shows the result of the concentration of BMP4 on the beak size in the embryos.

Introduction:

BMP4 is a protein, which controls cell division in embryonic tissues. BMP4 along with calmodulin influences the structure of beak in birds. This depends on the time when they are expressed in their life cycle of the cell.