Epigenetics/Enviro Factors

Which of these are directly affected by a mutation?

• proteins

• traits

• DNA

• organisms

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Why is it considered rare for a mutation to have a significant effect on an organism?

• mutations are often automatically corrected by cells

• mutations may occur in parts of DNA that do not code for proteins

• mutations may not affect the structure of the protein very much

• all of these

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The difference between DNA code and the epigenome is that the DNA code is

• flexible, while the epigenome is fixed for life
• fixed for life, while the epigenome is flexible
• determined by the environment, while the epigenome is not
• determined by one's stress level, while the epigenome is not

Which factor can affect the epigenome?

• nutrition
• exercise
• stress 
• all of these factors can affect the epigenome

True or False: Epigenetic changes are permanent.

• True

• False

True or False: Epigenetic changes can be passed on to future generations.

• True

• False

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NGSS.HS-LS3-2

How can a person's muscle cells have the same exact DNA sequences as their nerve cells even though the look and perform completely different?

• The two different cells become mutated

• The proteins expressed in each cell are different

• They actually have different DNA in the two types of cells.

• The genome of the different cells changes

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The amount of sun a plant can get is an example of a(n)

• Genetic factor

• Environmental factor

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A person deciding to workout, lift weights, and become buffed is an example of a(n)

• Genetic factor

• Environmental factor

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The color of a flower is an example of a

• Genetic factor

• Environmental factor

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NGSS.HS-LS3-1

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