Chapter 26.3, Problem 8COQ

(1)

Summary Introduction

To determine:

The difference between postzygotic and prezygotic reproductive isolating mechanism.

Introduction:

The term species refers to appearance or kind. There are various types of species and sometimes it is easy to identify different species, whereas, sometimes it is not. Biological species concept is a widely used definition of species. Reproductive isolation is a key to the difference of species under species concept (biological).

(2)

Summary Introduction

To list:

The different types of postzygotic and prezygotic reproductive isolating mechanism.

Introduction:

Postzygotic isolating mechanisms allow the fusion of gametes and their fertilization, whereas the postzygotic isolating mechanism prevents the gametes, so that they cannot fuse and form a zygote.