Which of the Following Statements is CORRECT

Question

Which of the following statements is CORRECT?
A)All genomes are encoded in DNA only.
B)All genomes are encoded in nucleic acids.
C)All genomes are encoded in proteins only.
D)The genetic instructions are decoded completely differently in each organism.
E)The molecular mechanism suggests life evolved from multiple primordial ancestors.

Accepted Answer

All genomes are encoded in nucleic acids. This includes both DNA and RNA, which are the two types of nucleic acids found in living organisms. While some viruses may have genomes composed of other materials, such as protein or RNA alone, this is not the case for all organisms. Therefore, statement A and C are incorrect. Statement D is also incorrect, as while there are some differences in how genetic information is decoded across different organisms, the fundamental processes by which DNA or RNA is used to produce proteins is conserved across all of life. Finally, statement E is a correct hypothesis but not a statement of fact.