Mutations
- Created by: BioFreakinomics
- Created on: 15-04-16 14:02
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- Mutations
- Some definitions
- A change in the amount of or arrangement of the genetic material in a cell
- A chromosome mutation is a change to the structure of the chromosome (on a larger scale)
- Causes
- Mutagens - e.g. tobacco tar, x-rays, UV & gamma
- Spontaneous mistake during DNA replication
- Mitosis = somatic mutation, not passed on
- Meiosis = possible inherited disease
- Kinds of DNA mutation
- Point mutation = one base pair replaces another
- Silent mutation = correct AA still chosen due to the degenerate code
- Insertion / Deletion = 1 or more nucleotide pairs are inserted or deleted from a length of DNA
- Point mutation = one base pair replaces another
- Examples
- Sickle cell anaemia = a point mutation
- Cystic fibrosis = deletion of a triplet of bases
- Untitled
- Some definitions
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