What is the study of environmental influences on gene expression that occur without a change in DNA sequence?

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Multiple Choice

What is the study of environmental influences on gene expression that occur without a change in DNA sequence?

Explanation:
Epigenetics is the study of how environmental influences can alter gene expression without changing the DNA sequence. The genetic code stays the same, but chemical marks such as DNA methylation and histone modifications can turn genes on or off or adjust their activity. These changes can be triggered by factors like nutrition, stress, toxins, early-life experiences, and aging, and can influence development and health. Some epigenetic marks are stable over time and may even be inherited to some extent, though they don’t involve altering the DNA sequence itself. The other terms here refer to mental disorders or a diagnostic manual, not the regulatory mechanisms by which the environment affects gene expression.

Epigenetics is the study of how environmental influences can alter gene expression without changing the DNA sequence. The genetic code stays the same, but chemical marks such as DNA methylation and histone modifications can turn genes on or off or adjust their activity. These changes can be triggered by factors like nutrition, stress, toxins, early-life experiences, and aging, and can influence development and health. Some epigenetic marks are stable over time and may even be inherited to some extent, though they don’t involve altering the DNA sequence itself. The other terms here refer to mental disorders or a diagnostic manual, not the regulatory mechanisms by which the environment affects gene expression.

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