What are the types and effects of genetic mutations?

Insertion/deletion - one or more nucleotide pairs are put in/taken out of a sequence -> causes frameshift. Duplication - one or more bases are repeated -> leads to frameshift. Inversion - group of bases separate from DNA sequence and rejoin at same position but in reverse order -> forms different amino acids and therefore protein. Translocation - group of bases separate from DNA sequence on 1 chromosome and insert into DNA sequence of another chromosome -> different proteins formed. Some mutations have no effect (neutral) e.g. occurs on non coding part of DNA or silent mutation

Answered by Zofia K. Biology tutor

1398 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

What's the mechanism behind inspiration in human?


With the aid of a diagram describe the events occurring in the neurone leading to the establishment of an action potential


What is transcription and describe the process


If the concentration of testosterone in a man’s blood starts to rise above normal, this system leads to a reduction in testosterone. How does this occur?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2024

Terms & Conditions|Privacy Policy