DNA Mutations

The model shows a mutation to a partial sequence of bases in a gene. Which type of mutation does the model demonstrate?

• Deletion

• Insertion

• Substitution

• Translocation

Why are insertion and deletion mutations so harmful?

• They change all of the codons from the mutation on down the line, which changes the amino acid sequence.

• They insert things that an organism doesn't need.

• They often delete things that organisms need.

• Insertion and deletions are not any more harmful than substitution mutations.

A geneticist found that a particular mutation had no effect on the protein produced by the gene. What type of mutation would this be called?

• Frameshift Mutation

• Point Mutation

• Silent Mutation

• Missense Mutation

Identify what type of mutation occurred:

Normal = ATA - CCC - ATC - GTC - ACT

Mutated = ATA - CCC - ACC - GTC - ACT

• Silent

• Substitution

• Insertion

• Deletion

Identify what kind of mutation occurred:

Original: AAA - TTC - CCG - GGG

Mutated: AAA - TTT - CCG - GG

• Nonsense

• Point Substitution

• Insertion

• Deletion

A substitution mutation is what type of mutation?

• Point

• Frameshift

• Insertion

• Deletion

A mutation is any change in ____ to an organism.

• Gametic

• Personality

• DNA base sequence

• Cells

The TWO main types of mutations are... (select all that apply)

• Gametes

• Substitute

• Frameshift

• Somatic

What type of mutation occurs when a stop codon is created too early?

• Silent

• Missense

• Nonsense

• Insertion

• Deletion

Insertions and deletions are what type of mutation?

• Missense mutations

• Frameshift mutations

• Point Mutations

• Nonsense mutations