mutations

Question 1

a point mutation changes:

Answer 1

one base in a DNA sequence

Question 2

if a mutation occurs, it could change the instructions for building the _____

Answer 2

protien

Question 3

Missense mutation:

Answer 3

substitution causes one amino acid to become a different amino acid

Question 4

nonsense mutation:

Answer 4

substitution causes one amino acid to become a stop codon

Question 5

silent mutation:

Answer 5

substitution occurs but results in no change to the amino acid

Question 6

missense, silent, and nonsense mutations are examples of:

Answer 6

substitution mutations

Question 7

insertion and deletion mutations are examples of:

Answer 7

frameshift mutations

Question 8

insertion mutation:

Answer 8

a genetic mutation where a single base is inserted into an existing base sequence

Question 9

deletion mutation:

Answer 9

a genetic mutation where a single base is deleted from an existing base sequence

Question 10

why are frameshift mutations often more damaging than substitution mutations?

Answer 10

Because it changes the amino acid sequence resulting in radical changes in the chemical composition of the protein sequence