According to the RNA World Hypothesis, Which of the Following

Question

According to the RNA World hypothesis, which of the following enzymes may have evolved first?
A) DNA-dependent RNA polymerase
B) DNA-dependent DNA polymerase
C) RNA-dependent RNA polymerase
D) RNA-dependent DNA polymerase
E) self-replicating RNAs

Accepted Answer

The RNA World hypothesis proposes that RNA was the first genetic material and that early life forms relied on self-replicating RNAs. Therefore, self-replicating RNAs, also known as ribozymes, may have evolved first in the RNA World. The other enzymes listed require DNA as a template, which suggests that they likely evolved later.