alleryThe **RNA World Hypothesis** suggests that the earliest life was based on:
ADNA only
BProteins only
CRNA (which acts as both genetic material and catalyst)
DLipid membranes only
Answer & Solution
Correct answer: C. RNA (which acts as both genetic material and catalyst)
Hypothesis (Carl Woese, Crick, Orgel) supported by discovery of **ribozymes** — catalytic RNAs (Altman, Cech, 1980, Nobel 1989).
RNA can both store information and catalyse reactions
ribosomes are RNA-catalysed.
DNA evolved later as a more stable repository.
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