Epigenetics

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

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NGSS.HS-LS1-1

NGSS.HS-LS1-4

What is a Gene?

• A segment of RNA that encodes for a protein
• A chromosome
• A segment of DNA that encodes for a protein
• Your genome

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NGSS.HS-LS1-1

Which factor can affect the epigenome?

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

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NGSS.HS-LS3-2

Basis that comprise DNA are :

• Adefine (A), Thymine (T), Guanine (G), and Cytosine (C).

• Adenine (A), Thymine (T), Guanine (G), and Cytosine (C).

• Adenine (A), Thymoin (T), Guanine (G), and Cytosine (C).

• Adenine (A), Thymine (T), Gualinine (G), and Cytosine (C).

According to epigenetics, what can be affirmed?

• What your grandparents did in life cannot have affected you

• Gene expression patterns can be passed on down generations.

• Epigenetics is synonym to environment effect.

• Epigenetics have no relation to DNA .

Increases gene transcription

• methylation
• transcriptase
• helicase
• DNA acetylation

Protein molecules around which DNA is tightly coiled in chromatin

• Histones
• Whey
• Casein
• Hemoglobin

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

• methylation
• acetylation
• transcription
• translation

Which of these molecules gets translated?

• DNA
• mRNA
• tRNA
• amino acids

What enzyme is responsible for adding nucleotides to the growing RNA strand?

• DNA Polymerase
• RNA Primase
• RNA Polymerase
• Topoisomerase