Epigenetics

Front

What is epigenetics?

Back

The study of changes in organisms caused by modification of gene expression rather than alteration of the genetic code itself.

Front

At what stage in the life of identical twins is the epigenome expected to be most similar?

Back

Age 6 months.

Front

What is the epigenome?

Back

The chemical compound modifications to the DNA code that can tell the DNA code what to do.

Front

True or False: Epigenetic changes are permanent.

Back

False.

Front

What is a genome?

Back

The complete instructions for making an organism, consisting of all the genetic material in that organism's chromosomes.

Front

What are epigenetic modifications?

Back

Chemical changes to DNA and histone proteins that affect gene expression without altering the DNA sequence.

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What role do environmental factors play in epigenetics?

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Environmental factors can influence epigenetic changes, affecting gene expression and potentially leading to different traits.

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What is DNA methylation?

Back

A common epigenetic mechanism where a methyl group is added to DNA, typically suppressing gene expression.

Front

What is histone modification?

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The addition or removal of chemical groups to histone proteins, affecting how tightly DNA is wound and thus gene expression.

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Can epigenetic changes be inherited?

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Yes, some epigenetic changes can be passed from one generation to the next.