The cells of living organisms store genetic information in the form of DNA, which can be transcribed into RNA. RNA can then be translated to form protein products. The genetic code that determines the sequence of DNA nucleotides that results in specific protein products is the same for all organisms on Earth. Which of the following does this provide evidence for?
A.
All species have identical phenotypes.
B.
All species have the same number of chromosomes.
C.
All species have existed for the same amount of time.
D.
All species share a common ancestor.