18.3- Mutations and genetic recombination Flashcards
1
Q
mutation=
A
permanent change to DNA sequence
2
Q
somatic cell mutations occur in ___
A
Body cells (2n)
3
Q
Germ line mutations occur in ___
A
Gametes (n)
4
Q
point mutations involve only 1 ___ and may be ___,____ or _____
A
nucleotide
substitution, insertion or deletion
5
Q
Mutations can be ___,____ or ____
A
silent, mis-sense or non-sense
6
Q
what are silent mutations
A
mutations that have no effect on cell processes
7
Q
what are mis-sense mutations
A
mutation sthat result in an altered protein- can be helpful or unhelpful
8
Q
what are non-sense mutations
A
- mutations resulting in a cell that cant make a functional protein
-stop or start sequence altered
-regular sequence altered