Question

which of the following was/ were present in the common ancestor of bacteria, archaea and eukarya? a.proteins b.rna c.dna d.answers (a) and (b) are correct e.answers (a), (b) and (c) are correct explanation:

Explanation:

All living organisms, including those in Bacteria, Archaea, and Eukarya, have proteins (which are involved in various cellular functions like catalysis, structure, etc.), RNA (which is crucial for processes like protein synthesis, as mRNA, tRNA, rRNA are essential), and DNA (the genetic material that stores the information for the functioning and inheritance of the organism). The common ancestor of these three domains would have had these fundamental biomolecules as they are basic requirements for life processes.

Answer:

E. Answers (a), (b) and (c) are correct