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Question
Evolution of the DNA → RNA → protein system was a milestone because the protocell ______.
Options
needed energy to grow
could now reproduce
was a heterotrophic fermenter
all of the above
MCQ
Fill in the Blanks
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Solution
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.
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