RAT #11 - Epigenetics

Question 1

{True / False}

DNA Methylation is an Epigenetic TAG.

Answer 1

TRUE

Question 2

{True / False}

Epigenetic Tags are NOT copied when the DNA is Copied + Passed on to Daughter Cells.

Answer 2

FALSE

Question 3

Which of the following is NOT a Possible CAUSE of Epigenetic changes?

a. DNA Mutations
b. Diet
c. Nicotine + Alcohol
d. Environmental Factors
e. Exercise

Answer 3

a. DNA Mutations

Question 4

{True / False}

ALL cells Contain the same Epigenetic Tags.

Answer 4

FALSE

Question 5

{True / False}

Epigenetics refers to the Modification of Genes that AFFECT the DNA sequence itself.

Answer 5

FALSE

Question 6

{True / False}

The Epigenome is an INFLEXIBLE structure that never changes.

Answer 6

FALSE

Question 7

Imprinted genes:

a. Provide an Example of Epigenetic Inheritance
b. are Near Differentially Methylated Regions
c. are Only Transmitted by One Parent
d. (a) and (b) only
e. None of the Above

Answer 7

d. (a) and (b) only
a. Provide an Example of Epigenetic Inheritance
b. are Near Differentially Methylated Regions

Question 8

The MECHANISM of SILENCING Genes through Epigenetics occurs:

a. Specifically at Cytosine (C) in DNA located in CpG islands
b. Specifically at Cytosine (C) in DNA located in areas where Strings of C are located
c. Specifically at (C) in RNA located in CpG islands
d. Specifically on Amino Acids on Histone tails

Answer 8

a. Specifically at Cytosine (C) in DNA located in CpG islands

Question 9

Which of the following Statements regarding Epigenetics is FALSE?

a. These changes may remain through cell divisions for the remainder of the cell’s life
b. There is NO Change in the underlying DNA sequence of the Organism
c. Genetic Factors cause the organism’s Genes to behave (or Express themselves) differently
d. May last for Multiple Generations + is therefore Inheritable

Answer 9

c. Genetic Factors cause the organism’s Genes to behave (or Express themselves) differently.

• FALSE ∵ not caused by Genetic Factors; caused by external factors
  
  • ie. Diet, Exercise, Environmental factors, etc.

Question 10

{True / False}

What a Mother eats before her Child is born can alter the Baby’s Epigenome.

Answer 10

TRUE