In Modern Biochemical Genetics,the Flow of Inherited Information Is from $\rightarrow$

In modern biochemical genetics,the flow of inherited information is from

A) protein $\rightarrow$ RNA $\rightarrow$ DNA.
B) DNA $\rightarrow$ RNA $\rightarrow$ protein.
C) DNA $\rightarrow$ protein $\rightarrow$ RNA.
D) RNA $\rightarrow$ DNA $\rightarrow$ protein.
E) RNA $\rightarrow$ protein $\rightarrow$ DNA.