Chapter 23.4, Problem 1LO

Summary Introduction

To write:

The ways in which environment can influence genetic traits and gene expression.

Given:

Genetic traits are greatly influenced by the environment of an organism.

Introduction:

The genetic expression of an organism can be influenced by its environment – both external and internal. Internally the hormones and metabolism differently alter gene expression of individuals. The external factors which influence genetic traits include geographical location, light, temperature, drugs, chemicals and others that determine which genes are turned on or off, influencing the development and behavior of the organism.