Chapter 20.2, Problem 2R

Summary Introduction

To review:

The traits evolved by the changes through the genetic drift and the ones, which evolve by the natural selection.

Introduction:

The genetic drift and the natural selection both are the processes of evolution. The genetic drift can be defined as the changes, which occur in the population due to a chance event. The natural selection can be defined as the changes in the population, which occur due to the selection of a specific trait by nature.