Question

The first genetic material could be ______.

पर्याय

• RNA

• DNA

• protein

• lipid

Answer 1

The first genetic material could be RNA.

Explanation:

According to the “RNA World” hypothesis, RNA is widely believed to be the first genetic material because it is a versatile molecule that can perform two critical tasks. Unlike DNA, which only stores information, or proteins, which only act as catalysts, RNA can both store genetic code and act as a biological catalyst (called a ribozyme) to speed up chemical reactions. Early life forms likely used RNA for both roles, and only later did the more stable DNA evolve for long-term storage, while proteins took over the role of specialised machinery.