Mutations & Epigenetics Review

The complete instructions for making an organism, all of your DNA code.

• genome
• epigenome
• phenotype

• RNA codon

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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

• the same 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: Mutations are permanent.

• True

• False

When can a mutation be passed on to offspring?

• only when the mutation occurs in body cells

• only when the mutation occurs in sperm or egg cells

• mutations are never passed on to offspring

• mutations are always passed on to offspring

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What does epigenetics study?

• The process of DNA replication

• The study of genetic mutations

• The inheritance of physical traits from our parents

• How our environment influences our genes without altering the DNA sequence

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How can epigenetic changes be reversed?

• a. By changing the DNA sequence

• b. Through environmental and lifestyle changes

• c. They are permanent and cannot be reversed

• d. By introducing specific mutations

What is a mutation?

• A new species

• A cell division process

• A change in your DNA

• A type of genetic disorder

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How many genes do identical twins share?

• 90%

• 100%

• 50%

• 0%

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