DNA Mutations Flashcards
1
Q
What is a mutation ?
A
A change in the DNA base sequence
2
Q
Examples of things that increase the risk of mutations
A
- Carcinogens
- X-rays
- Gamma Rays
3
Q
What happens when a mutation occurs ?
A
A change in a codon could change a specific amino acid which makes a protein changing the protein as well
4
Q
Where do must mutations occur ?
A
In non-coding DNA
5
Q
What are the different types of mutations ?
A
- Substitutions
- Deletions
- Insertions
6
Q
What is a substitution mutation ?
A
When one of the bases is changed for another random base
7
Q
What is a insertion mutation ?
A
When an extra base is inserted into the sequence
( Worse than substitutions as amino acid chain is completely different )
8
Q
What is a deletion mutation ?
A
When one of the bases is deleted from the sequence
