lecture 2 - DNA replication and repair Flashcards
(10 cards)
1
Q
what are the 3 types of base substitutions?
A
silent, missense and nonsense
2
Q
silent mutation?
A
no change in amino acid sequence
3
Q
missense mutation?
A
change in amino acid translated
4
Q
nonsense mutation?
A
STOP codon formed
5
Q
base addition?
A
addition of a base which causes extensive codon changes downstream
6
Q
base deletion?
A
deletion of a base which causes extensive codon changes downstream
7
Q
mutagenesis?
A
process by which mutations arise
8
Q
types of mutation
A
spontaneous and induced
9
Q
tautomeric shift causes…
A
irregular base pairings (after shift, BP rules are altered)
10
Q
A
