Biochemistry · Molecular Biology and Genetics

Mutation and mutagenesis

3 min read

Quick Orientation

Section

Definition

Objective
Understand the core idea
Keywords
Mutation, Mutagens

Origin and Consequences of DNA Damage

Objective
Learn the main facts and relationships
Keywords
1 error per 10^9 base pairs, 10^-10 mutations per base pair per cell generation, 1 mutation per 10^6 base pairs

Types of DNA Damage

Objective
Separate the major categories
Keywords
Deamination, uracil, hypoxanthine

Types of Mutations

Objective
Separate the major categories
Keywords
point mutations, frameshift mutations, Frameshift mutations

Clinical Correlation

Objective
Connect the mechanism to clinical findings
Keywords
sickle cell anemia, cancer

Definition

Mutation: a change in the DNA structure of a gene, reflected in replication, transcription and translation.

  • Mutagens: chemical substances that can induce mutations.

Origin and Consequences of DNA Damage