Question

What are the two fundamental roles of dna?
a. to carry out the genetic instructions for protein synthesis, and replicate itself before cell division.
b. to carry out the orders for protein synthesis issued by rna, and to control genetic expression by shutting down genes or altering their expression.
c. to carry out and direct instructions for protein synthesis.
d. to direct protein synthesis, and replicate itself before cell division?

Answer 1

the two fundamental roles are To direct protein synthesis, and replicate itself before cell division. To make the proteins, our body needed to obtain the required information from the DNA. So it pretty much acted as the main controller in protein synthesis.
During cell division,  DNA will split so the Children could obtain half of their fathers DNA and half of their mother's DNA