Which of the following demonstrates the central dogma of molecular biologists?

Gene expression in the live on environmental factors that determine which traits are dominant.
DNA and RNA mutate into either a harmful or helpful affects on the human body.
Proteins replicate DNA, which gives the expression of traits to an organism.
DNA and RNA hold the code to create proteins that are the key to gene expression.

DNA and RNA hold the code to create proteins that are the key to gene expression.