how does the presence of introns is reminiscent of antiquity how the process of splicing represents the dominance of RNA - Biology - Molecular Basis of Inheritance

Question

how does the presence of introns is reminiscent of antiquity how
the process of splicing represents the dominance of RNA -world??

Anamika Singh .......... · Accepted Answer

The primary transcript consists of introns and exons "Presence of
introns is reminiscent of antiquity" implies that introns were
previously in past an important pieces of information used to form
mRNA but now are of no importance

"Process of splicing represents the dominance of RNA world" implies
that RNA is the one that decides whether to keep introns or not,
DNA kept the both

how does the presence of introns is reminiscent of antiquity how the process of splicing represents the dominance of RNA -world??