Epigenetics

Question 1

What is Chargaff’s rule?

Answer 1

The amount of Adenine will aways be equal to the amount of Thymine, while the amount of Cytosine will aways be equal to the amount of Guanine.

Question 2

What did Meselson and Stahl discover?

Answer 2

DNA is semi-conservative.
One strand of DNA is conserved while one strand is newly formed.

Question 3

What are the applications of genetics?

Answer 3

• genetic counseling
• diagnostic, detection of genetic predisposition to disease,
• gene therapy
• drug design
• nutrigenomics (science which explains how genes relate to diet (ie. response to food dependent of genetic sex)
• GMO’s,
• transgenic organisms
• breeding, bioprocessing and selection
• chromosome mapping

Question 4

What is nutrigenomics?

Answer 4

Science which relates diet with genetics.

Question 5

What is genome editing?

Answer 5

• Removal of unwanted parts of genes

Question 6

What is epigenetics?

Answer 6

Heritable changes in gene activity and expression that occur without alteration in the DNA sequence.