Which macromolecule do the majority of scientists favor as the "first" to be found in protobionts?
A)DNA.
B)RNA.
C)Amino acids.
D)Proteins.

Question

Quizplus · Accepted Answer

RNA is favored as the "first" macromolecule found in protobionts because it can serve both as a genetic material and as an enzyme-like catalyst for chemical reactions, which is essential for the formation and maintenance of early self-replicating systems. RNA can also undergo self-replication through complementary base pairing, which is a key requirement for the beginning of life. The other macromolecules listed (DNA, amino acids, and proteins) are also important components of living systems, but RNA has been proposed as the most likely candidate for the first self-replicating molecule in early life.

Which Macromolecule Do the Majority of Scientists Favor as the "First