Mutations: Review

Which of the following is an example of a hurtful mutation? 

• Developing cancer
• Makes the organism faster
• Makes the organism a predator 
• Develops sharp claws

What mutation has occurred here? 
T-G-A-C-C-A
T-G-A-G-C-A

• Substitution
• Deletion
• Insertion
• Frameshift 

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

Which process is directly affected by mutations in an organism's DNA?

• Photosynthesis

• Cellular respiration

• Protein synthesis

• Water absorption

What do helpful mutations do? 

• Increases chances of survival

• Decreases chances of survival

• Increases chances of developing cancer

• Decreases skills

What do hurtful mutations do? 

• Decrease chances of survival 
• Increases changes of survival 
• Decreases likelihood of developing cancer
• Increases likelihood of developing cancer

Some mutations cause no apparent change to an organism.

• True

• False

Some mutations are beneficial for the organism.

• True

• False

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

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

• Substitution
• Deletion
• Insertion
• Inversion