Gene Mutations

Any change in the sequence of DNA is called a ...

• transgenic shift

• Single Genotype

• Monohybrid Trait

• Mutation

What mutation has occurred here?

TGA-CCA

TGA-GCA

• Substitution

• Deletion

• Insertion

• Frameshift

Normal-

AGA-TTC-ATA-GCG

Mutant-

AGA-TTC-AAT-AGC-G

• deletion frameshift

• insertion frameshift

• substitution

• nonsense

DNA molecule segment is : TTA-CGC-AAG

The mutated DNA segment is TTC-GCA-AG. This is an example of ___ mutation.

• Substitution

• Deletion frameshift

• Insertion frameshift

• Inversion

When one base replaces another, this is a common type of mutation called what?

• Insertion

• Substitution

• Inversion

• Deletion

Are all mutations harmful?

• Yes, they are caused by toxic chemicals and radiation

• No, all mutations are beneficial

• Yes, mutations cause fatal diseases

• No, some can be useful in a changing environment

A mutation that changes one amino acid is called a _______ mutation.

• Nonsense

• Missense

• Silent

• Frameshift

A mutation that still produces the same amino acid is called a __________ mutation.

• nonsense

• missense

• silent

• frameshift

A mutation that stops the production of protein too early is called a ____ mutation.

• nonsense

• missense

• silent

• frameshift

An insertion or deletion change to way DNA or RNA is read so they are called ______________ mutations.

• nonsense

• missense

• silent

• frameshift