Chapter 22, Problem 3Q

Summary Introduction

To review:

Whether the frequency of hybridization will increase or decrease, between allopatric populations and D. brichii, if the artificial selection acts like natural selection which is involved in the reinforcement.

Introduction:

There are differences that accumulate in the lineages. This reduces the probability of individuals mating with each other successfully, whenever they come into contact. If this isolation fails, when the species come into contact, then some hybridization is bound to occur. The selection of the species will favor the parents. Due to this, the selection will result in the reinforcement of the mechanisms that prevent hybridization.