Problem: What would be required to prove that a phenotype is caused by an epigenetic change? A) The phenotype must be unexplained by known genetic mechanisms B) The phenotype must be passed to progeny only through the maternal DNA. C) The phenotype must be the result of a nucleotide change that is present in one gender but not the other D) The phenotype must be heritable with modified chromatin and an unaltered nucleotide sequence. E) The phenotype must be reversible in the presence of mutagenic compounds.

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Epigenetics: study of heritable changes in gene expression that do not involve changes to the underlying DNA sequence

: a change in phenotype without a change in genotype

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Problem Details

What would be required to prove that a phenotype is caused by an epigenetic change? 

A) The phenotype must be unexplained by known genetic mechanisms 

B) The phenotype must be passed to progeny only through the maternal DNA. 

C) The phenotype must be the result of a nucleotide change that is present in one gender but not the other 

D) The phenotype must be heritable with modified chromatin and an unaltered nucleotide sequence. 

E) The phenotype must be reversible in the presence of mutagenic compounds.

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