Epigenetics

The difference between DNA code and the epigenome is that the DNA code is

• flexible, while the epigenome is fixed for life
• fixed for life, while the epigenome is flexible
• determined by the environment, while the epigenome is not
• determined by one's stress level, while the epigenome is not

Which factor can affect the epigenome?

• nutrition
• exercise
• stress 
• all of these factors can affect the epigenome

Protein molecules around which DNA is tightly coiled in chromatin

• Histones
• Whey
• Casein
• Hemoglobin

Tags

NGSS.HS-LS1-1

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

• genome
• epigenome
• genetic markers
• RNA codon

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

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

• hypogenomics

• epigenetics

• microgenomics

• none of these

Which of these can cause a gene to be expressed more - that is, can cause more protein to be made from it?

• removal of methyl groups from the DNA

• loosening of how tight the DNA is coiled around histones

• both of these are correct

True or False: Epigenetic changes are permanent.

• True

• False

True or False: Epigenetic changes can be passed on to future generations.

• True

• False

Tags

NGSS.HS-LS3-2

At what stage in the life of identical twins is the epigenome expected to be most similar?

• Age 6 months
• Age 21
• Age 55
• Trick quesiton; the epigenome never changes

Tags

NGSS.HS-LS3-2

How can a person's muscle cells have the same exact DNA sequences as their nerve cells even though the look and perform completely different?

• The two different cells become mutated

• The proteins expressed in each cell are different

• They actually have different DNA in the two types of cells.

• The genome of the different cells changes

Tags

NGSS.HS-LS1-1