Gene Regulation: Operons and Epigenetics · Zoology

Epigenetics refers to heritable changes in gene expression that occur without changes in:

Protein tertiary structure
RNA nucleotide sequence
DNA nucleotide sequence
Chromosome copy number

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Correct answer: DNA nucleotide sequence

Epigenetic changes alter gene expression without modifying the underlying DNA nucleotide sequence. These heritable modifications, such as DNA methylation and histone acetylation, can be passed through cell divisions.

Difficulty: Medium Question 10 of 20

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Epigenetics refers to heritable changes in gene expression that occur without changes in:

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