The central dogma of molecular biology states that DNA is transcribed into RNA, which in turn translates to proteins, with some exceptions and special processes involved. This has started many discussions about the first biomolecule in the theory of abiogenesis.

(a) In your opinion, what is the first biomolecule in the theory of abiogenesis? Support your answer with academic research evidence. Examine whether functional genomics and its methods can help determine the validity and feasibility of your proposed first biomolecule as the starting biomolecule formed on Earth.

(b) Build a phylogenetic tree with related RNA, DNA, and protein sequences. You may choose to use different viruses and their hosts. Discuss whether the phylogenetic tree supports your chosen biomolecule as the first biomolecule in the theory of abiogenesis. Choose another set of biomolecules of a different species and origins. Give reasons to support the similarity/disparity of the results. How does this affect your answer in (a)?