Unit 6- Mutations

Question 1

Deletion

Answer 1

Where one nucleotide pair is missing, changing the following codons and amino acids

Question 2

Frameshift mutation

Answer 2

Caused from insertions and deletions where all amino acids are missed after a mutation

Question 3

Insertion

Answer 3

Where an incorrect nucleotide pair is inserted

Question 4

Mutagen

Answer 4

Mutations are caused by chemical and physical mutagens your DNA is exposed to, like carcinogens and UV light.

Question 5

Mutation

Answer 5

Mutations are spontaneous errors in DNA synthesis

Question 6

Point mutation

Answer 6

a mutation only affecting one or very few nucleotides in a gene sequence, like substitution and missense

Question 7

Substitution

Answer 7

one base is exchanged for another
Missense- a different amino acid is coded for
Nonsense- a stop codon is coded for; no further translation