Chapter 16.1, Problem 2SAQ

Summary Introduction

To describe:

The biological basis for $1:1$ ratio of the females and males at the time of conception in males.

Concept introduction:

The process through which the development of the sexual characteristics determined is known as the sex determination. Generally, most of the living organisms produce their offspring through the sexual reproduction and the offspring have two different sexes. The sex of individuals is determined by the chromosomal system and environmental system.