The genetic code is essentially the same for all organisms. From this, one can logically assume all of the following except
A)a gene from an organism could theoretically be expressed by any other organism.
B)all organisms have a common ancestor.
C)DNA was the first genetic material.
D)the same codons in different organisms usually translate into the same amino acids.
E)different organisms have the same number of different types of amino acids.

Question

Quizplus · Accepted Answer

The fact that the genetic code is essentially the same for all organisms does not imply that DNA was the first genetic material. It is possible (although not proven) that RNA was the first genetic material, and that DNA evolved later.

The Genetic Code Is Essentially the Same for All Organisms