The Nucleotide Sequence of DNA

Question

The nucleotide sequence of DNA
A) is the same in all organisms of a species.
B) contains only information for translation.
C) evolved before RNA.
D) contains the four bases A,T,G,and C.
E) All of the above

Accepted Answer

The nucleotide sequence of DNA contains the four bases A,T,G, and C. The sequence of these bases is specific to each organism and serves as the genetic code to store and transmit genetic information. This DNA sequence is then used to transcribe RNA, which is then translated to produce proteins. RNA is a later evolutionary development and therefore did not evolve before DNA.