3.8.1 - Alterating the Sequence of Bases in DNA Can Alter Protein Structure Flashcards
1
Q
gene mutations
A
- might arise during DNA replication
- occur spontaneously
- rate increased by mutagenic agents
- can result in diff. amino acid sequence in encoded polypeptide
2
Q
addition mutation
A
- extra base added into sequence
- all bases that follow moved along (frame shift)
- causes most amino acids coded for by codons at/after the addition to change
3
Q
deletion mutation
A
- loss of a base
- causes frame shift in other direction
- all bases move along to replace the one that was lost
- also changes most of the codons at/after the deletion
4
Q
substitution mutation
A
- point mutation
- where the wrong base is inserted and replaces the original base
5
Q
inversion mutation
A
answer
6
Q
duplication mutation
A
answer
7
Q
translocation mutation
A
answer
