AGB 121: Principles of Animal Genetics and Population Genetics (2+1)

Introduction

POINT / GENE MUTATON

• A gene or point mutation is defined as any permanent change in a DNA sequence that makes up a gene.
• Gene mutations occur in two ways,
  • Inherited from a parent or
  • Acquired during its lifetime.
• Mutation can result in several different types of change in DNA sequences; these can either have
  • no effect,
  • alter the product of a gene,
  • prevent the gene from functioning, or
  • cause lethal.