Question

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give a short note on
Epigenetics.

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Answer 1

Epigenetics literally means "above" or "on top of" genetics. It refers to external modifications to DNA that turn genes "on" or "off." These modifications do not change the DNA sequence, but instead, they affect how cells "read" genes. Epigenetic changes alter the physical structure of DNA.

Answer 2

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☯ A N S W E R :-

• Epigenetics literally means "above" or "on top of" genetics.

• It refers to external modifications to DNA that turn genes "on" or "off."

• These modifications do not change the DNA sequence, but instead, they affect how cells "read" genes.

↪Why is it important?

• Incorrect epigenetic marks can result in birth defects, childhood diseases, or symptoms of diseases in other interims of life.

• Epigenetic mechanisms also regulate development and adaptations during the life of an organism, and their alterations may result in various disorders such as cancer.

↪What are 3 factors that affect epigenetics?

• Lifestyle includes different factors such as nutrition, behavior, stress, physical activity, working habits, smoking and alcohol consumption. Environmental and lifestyle factors may influence epigenetic mechanisms.

↪What is the role of epigenetics?

• Epigenetics is a mechanism of gene control that can promote or repress the expression of genes without altering the genetic coding of an organism (Feinberg, 2008).

• In other words epigenetics represents a system by which the gene expression of an individual can be altered without altering their genome's sequence.

↪What diseases can be affected by epigenetics?

• Epigenetic diseases and their causes and symptoms. Epigenetic changes are responsible for human diseases, including Fragile X syndrome, Angelman's syndrome, Prader-Willi syndrome, and various cancers.

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