Mutations

Question 1

What are substitution mutations?

Answer 1

When one nucleotide and it’s partner gets replaced with another pair of nucleotides

Question 2

Silent Mutations

Answer 2

• Have no effect on the amino acid produced by a codon
• Because of redundancy in the genetic code

Question 3

Missense Mutations

Answer 3

Still code for an amino acid but not the correct one

Question 4

Nonsense mutations

Answer 4

• Change an amino acid codon into a stop codon
• Nearly always leading to a nonfunctional protein

Question 5

What are insertion mutations?

Answer 5

• Additions of nucleotide pairs in a gene
• Have a disastrous effect on the resulting protein
• Frameshift mutations

Question 6

What are deletion mutations?

Answer 6

• Losses of nucleotide pairs in a gene
• Have a disastrous effect on the resulting protein
• Frameshift mutation