About 39,700,000 results
Open links in new tab
  1. Types of mutations - Understanding Evolution

    Since protein-coding DNA is divided into codons three bases long, insertions and deletions can alter a gene so that its message is no longer correctly parsed. These changes are called …

  2. Mutation - Wikipedia

    Four classes of mutations are (1) spontaneous mutations (molecular decay), (2) mutations due to error-prone replication bypass of naturally occurring DNA damage (also called error-prone …

  3. 14.5: Types of Mutations - Biology LibreTexts

    Frameshift mutation: This type of mutation occurs when the addition or loss of DNA bases changes a gene’s reading frame. A reading frame consists of groups of 3 bases that each …

  4. Mutation | Definition, Causes, Types, & Facts | Britannica

    Dec 4, 2025 · Mutations in DNA occur for different reasons. For example, environmental factors, such as exposure to ultraviolet radiation or certain chemicals, can induce changes in the DNA …

  5. What Is a Genetic Mutation? Definition & Types - Cleveland Clinic

    Genetic mutations are changes to your DNA sequence that happen during cell division when your cells make copies of themselves. Your DNA tells your body how to form and function.

  6. What are different types of mutations? - YourGenome

    They range from small-scale mutations affecting one or only a few bases, to large-scale mutations where whole sections of DNA are changed. Some might have no effect, but others can affect …

  7. DNA Mutations | Biology for Majors I - Lumen Learning

    Mutations can be of many types, such as substitution, deletion, insertion, and translocation. Mutations in repair genes may lead to serious consequences such as cancer.

  8. Types of Mutations Explained: Definition, Examples, Practice

    Mutations are changes in the DNA sequence that can significantly impact the phenotype of an organism. They can be classified based on their effects on protein activity, leading to two …

  9. Genetic Mutations: Types, Causes, and Cellular Repair Mechanisms

    Apr 29, 2025 · This article will explore the different categories of mutations, the errors during DNA replication that contribute to these changes, and the cellular mechanisms that attempt to repair …

  10. Different Types of Genetic Mutations and Variants - Explained

    Genetic mutations refer to changes in the DNA sequence that affect the gene's function, potentially leading to genetic disorders. Genetic variations are differences in DNA sequences …