IGCSEBiology: Double ScienceEdexcelRevision Notes3. Reproduction & InheritanceInheritance3.34 Mutation

Mutation (Edexcel IGCSE Biology: Double Science)

Revision Note

Test yourself
Lára

Author

Lára

Last updated

Did this video help you?

Mutations

  • Mutations are rare, random changes that occur in the sequence of DNA bases in a gene or a chromosome
  • Mutations can be inherited
  • They occur continuously
  • As the DNA base sequence determines the sequence of amino acids that make up a protein, mutations in a gene can sometimes lead to a change in the protein that the gene codes for
    • Most mutations do not alter the protein or only alter it slightly so that its appearance or function is not changed

You've read 0 of your 10 free revision notes

Unlock more, it's free!

Join the 100,000+ Students that ❤️ Save My Exams

the (exam) results speak for themselves:

    Test yourself

    Did this page help you?

    Previous:3.33 Variation with a SpeciesNext:3.38 Darwin's Theory of Evolution by Natural Selection
    Lára

    Author: Lára

    Expertise: Biology Lead

    Lára graduated from Oxford University in Biological Sciences and has now been a science tutor working in the UK for several years. Lára has a particular interest in the area of infectious disease and epidemiology, and enjoys creating original educational materials that develop confidence and facilitate learning.