Chapter 19, Problem 2CR

Summary Introduction

To review:

The differences between gene and allele.

Introduction:

An allele is an alternate form of DNA (deoxyribonucleic acid). It is one of the forms of genes. They always in two copies. For example, a gene that governs the height has two alleles. One allele governs the tallness and another one governs the dwarfness. So, the height of the individual depends upon the allele, which expresses itself.