Mutations Flashcards
1
Q
What is a mutation?
A
A random change in the base sequence of DNA.
2
Q
Which things increase the risk of mutations occurring?
A
3
Q
Will risk factors always cause a mutation?
A
No, they just increase the chance of them occurring.
4
Q
What does it mean for a gene to be ‘expressed’?
A
A characteristic of an organism is affected by that gene.
5
Q
What is non-coding DNA?
A
DNA parts that don’t code for proteins, and can switch genes on or off
6
Q
Are mutations more likely to occur in coding or non-coding DNA?
A
They occur more in non-coding DNA.
7
Q
If a gene has a mutation, what could happen to the protein it codes for?
A
The protein could change in shape due to a different sequence of amino acids inside it.
