Gene mutation

A gene mutation (myoo-TAY-shun) is a change in one or more genes. Some mutations can lead to genetic disorders or illnesses.

1. What are the 4 types of gene mutations?
2. What is an example of a gene mutation?
3. What are the 3 main types of gene mutations?
4. What causes genes to mutate?

What are the 4 types of gene mutations?

Summary

• Germline mutations occur in gametes. Somatic mutations occur in other body cells.
• Chromosomal alterations are mutations that change chromosome structure.
• Point mutations change a single nucleotide.
• Frameshift mutations are additions or deletions of nucleotides that cause a shift in the reading frame.

What is an example of a gene mutation?

Other common mutation examples in humans are Angelman syndrome, Canavan disease, color blindness, cri-du-chat syndrome, cystic fibrosis, Down syndrome, Duchenne muscular dystrophy, haemochromatosis, haemophilia, Klinefelter syndrome, phenylketonuria, Prader–Willi syndrome, Tay–Sachs disease, and Turner syndrome.

What are the 3 main types of gene mutations?

Types of Mutations

There are three types of DNA Mutations: base substitutions, deletions and insertions.

What causes genes to mutate?

A mutation is a change in a DNA sequence. Mutations can result from DNA copying mistakes made during cell division, exposure to ionizing radiation, exposure to chemicals called mutagens, or infection by viruses.