Question

Evolution of the DNA → RNA → protein system was a milestone because the protocell ______.

पर्याय

• needed energy to grow

• could now reproduce

• was a heterotrophic fermenter

• all of the above

Answer 1

Evolution of the DNA → RNA → protein system was a milestone because the protocell could now reproduce.

Explanation:

The evolution of the DNA → RNA → protein system marked a major milestone in the origin of life because it gave the protocell the ability to store genetic information (DNA), transfer it (RNA), and synthesize enzymes/proteins required for metabolism and replication.