in class: types of mutations

Question 1

nonsense mutation

Answer 1

causes loss of function

mutation is 1 base is changed

amino acid sequence is smaller

Question 2

silent mutation

Answer 2

functional

mutation is 1 base is changed but amino acid is still the same

Question 3

missense mutation

Answer 3

could be the same function or loss of function depends on how alike or different the changed amino acid is

mutation is 1 amino acid changed

Question 4

frameshift mutation

Answer 4

loss of function or gain of function

mutation is insertion or deletion of 1 base

Question 5

most lethal to least lethal point mutations

Answer 5

1. frameshift mutation
2. nonsense mutation
3. missense mutation
4. silent mutation

Question 6

why is frameshift mutation so dangerous

Answer 6

don’t know if the change of the base will greatly affect the protein.

if the protein gets too big it won’t be good for the cell

Question 7

stop codons

Answer 7

UAA
UAG
UGA

Question 8

start codon and amino acid sequence

Answer 8

AUG= MET