Epigenetics

Front

What is the epigenome?

Back

The epigenome refers to the chemical compound modifications to the DNA code that regulate gene expression without altering the DNA sequence itself.

Front

How does the DNA code differ from the epigenome?

Back

The DNA code is fixed for life, while the epigenome is flexible and can change in response to environmental factors.

Front

At what age are the epigenomes of identical twins expected to be most similar?

Back

The epigenomes of identical twins are expected to be most similar at age 6 months.

Front

What is epigenetics?

Back

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

Front

True or False: Epigenetic changes can be inherited by future generations.

Back

True.

Front

What role do environmental factors play in the epigenome?

Back

Environmental factors can influence the epigenome, leading to changes in gene expression without altering the underlying DNA sequence.

Front

What are some examples of environmental factors that can affect the epigenome?

Back

Examples include diet, stress, toxins, and lifestyle choices.

Front

What is DNA methylation?

Back

DNA methylation is a common epigenetic mechanism that involves the addition of a methyl group to DNA, affecting gene expression.

Front

What is histone modification?

Back

Histone modification refers to the chemical changes to the proteins around which DNA is wrapped, influencing gene accessibility and expression.

Front

How can epigenetic changes impact health?

Back

Epigenetic changes can lead to various health issues, including cancer, by altering the expression of genes involved in cell growth and regulation.