Mutations Review

A point mutation is usually what type of mutation

• Frameshift

• Insertion

• Deletion

• Substitution

A frameshift mutation is which of the following?

• Point mutation

• Insertion

• Deletion

• Subtitution

Which mutation would be more harmful for an organism?

• Point mutation (substitution)

• Frameshift (insertion/Deletion)

Why would a frameshift be more harmful?

• It changes all the code downstream

• Only one nucleotide is changing

• All mutations are harmful

• It can't correct iself

An environment becomes colder. Some of the rabbits which live there have a mutation that causes their fur to be longer and thicker allowing them to stay warmer. This is an example of a

• positive mutation

• negative mutation

• neutral mutation

A species of frog lives in the rainforest. One of the frogs is born with a mutation which causes it's skin to be completely white. This is an example of a

• positive mutation

• negative mutation

• neutral mutation

Between 6,000 and 10,000 years ago a mutation led to blue eyes in humans. This is an example of a

• positive mutation

• negative mutation

• neutral mutation

What mutation has occurred here?

T-G-A-C-C-A

T-G-A-G-C-A

• Substitution

• Deletion

• Insertion

• Frameshift

DNA molecule segment is : TTACGCAAG

The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.

• Substitution

• Deletion

• Insertion

• Inversion

A mutation is defined as:

• A change in the cell's structure

• Anything that changes in an embryo

• Any change in the physical features of a human

• A change in the DNA sequence