Epigenetics

The complete instructions for making an organism, consisting of all the genetic material in that organism's chromosomes.

• Epigenome

• DNA

• genome

• genetic markers

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

The study of the inherited changes in gene expression that occur without a change in gene sequence and influence how an organism's genes express themselves. Mechanisms are influenced by food and environment. They play an important role in the fetal basis of adult disease susceptibility.

• bionomics

• genomics

• genetics

• epigenetics

Protein molecules around which DNA is tightly coiled in chromatin

• histones

• casein

• nucleosome

• chromosome

A chemical modification of DNA that does not affect the nucleotide sequence of a gene but makes that gene less likely to be expressed.

• activators

• methylation

• acetylation

• proteins

Epigenetics refers to changes in:

• DNA sequence

• Gene structure

• Gene expression

• DNA frequency

Every cell has a copy of every gene

• True

• False

All genes are expressed in every cell

• True

• False

Which factor can affect the epigenome?

• Diet

• Exercise

• Stress

• Aging

Tags

NGSS.HS-LS3-2

The chemical compound modifications to the DNA code that can tell the DNA code what to do

• genome
• epigenome
• microgenetics

• RNA codon

True or False: Epigenetic changes are permanent.

• True

• False