Chapter 50, Problem 12TYU

Summary Introduction

To analyze:

The choice of the female of certain insect species among the two males categorized as first and second male for the mating.

Introduction:

The process of internal fertilization is common in vast majority of terrestrial organisms and in some of the aquatic animals. The process of fertilization is the union of egg and sperm to form the zygote, which is followed by the embryo development.

The term sperm competition takes an immense important in insect species. Sperm competition is a process in which the sperms of different males compete to fertilize with the eggs of the same female. In 1970Geoff Parker published his experiments involved a series of matings of one female with two males. His findings indicates that the number of offspring were more in case of fertilization with the second male.