Question

Why do scientist think that the rna and not dna , was the first gene?

Answer 1

Hey mate! Here is the answer to your query:-

It now seems certain that RNA was the first molecule of heredity, so it evolved all the essential methods for storing and expressing geneticinformation before DNA came onto the scene. However, single-stranded RNA is rather unstable and is easily damaged by enzymes.

Hope it helps you...
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