4 Genetics - Mutations Flashcards
1
Q
What is a mutation?
A
A change in the sequence of nucleotides, ultimately leading to a different protein being formed
2
Q
What types of mutation are there?
A
- base deletion
- base substitution
3
Q
What are base deletion mutations?
A
- this occurs when the bases are not read correctly, results in one base not being included in the transcribed mRNA
- this may cause a frameshift.
4
Q
What is a frameshift?
A
- a shift in the way that codons are read, this may result in a different polypeptide chain being produced, however this is not always applicable due to the degenerate nature of DNA
5
Q
What is a silent mutation?
A
