Chapter 23.3, Problem 3R

Summary Introduction

To review:

The importance of gene duplication for a long-term evolutionary change.

Introduction:

Gene duplication is a way, in which the genomes acquire the new functions. In gene duplication, one copy of the gene is made free from doing the original function. The gene duplication can have many outcomes. Both the genes can retain their original functions or both genes may have the ability to produce the original gene, but they may have the ability to diverge in different tissues at different times. One gene may become incapacitated and one gene may have the original function and the second may perform differently.