Adaptations: Lesson 5 Quiz 24-25

A mutation is defined as:

• A change in the cell's structure

• Anything that changes in an organism

• Any change in the physical features of an organism

• A random change in the organism's DNA.

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Why is DNA important?

• It tells the traits which proteins to build.

• DNA gets its instructions from the traits which come from the parents.

• It serves as the instructions telling proteins how to express the traits

• Each cell has its own unique DNA that does the job of that cell.

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What is a Gene?

• A segment of DNA that directly builds a trait

• A gene is a trait

• A segment of DNA which serves as instructions for a protein

• A major part of a cell's structure

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Mutations can benefit organisms because they can:

• Cause illness

• Make organisms well suited (matched) to live in their environment.

• Make organisms live shorter lives

• Cause organisms to grow extra limbs.

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What do harmful mutations do? 

• Decrease chances of survival 
• Increases chances of survival 

• Decreases likelihood of developing cancer
• Increases likelihood of developing cancer

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What do helpful mutations do? 

• Increases chances of survival 
• Decreases chances of survival 

• Increases chances of developing cancer
• Decreases skills

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

• Develops speed 
• Decreases speed
• Increases weight gain 
• Develops no camouflage 

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What is an example of a neutral mutation?

• lack of camouflage

• easier to get sick

• a change in eye color

• lactose intolerance

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TRUE / FALSE: MOST mutations are often spontaneous. (Nothing in particular causes them, they just happen)

• TRUE

• FALSE

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Which of the following is an example of a harmful mutation for the mutated organism?

• A change in the organisms fur color which doesn't match its environment

• Having larger muscles to make the organism stronger

• A change in eye color from brown to blue

• Bacteria developing resistance to an antibiotic

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