Question

IT IS ESTABLISHED THAT RNA IS A FIRST GENETIC MATERIAL EXPLAIN

Answer 1

DNA needs RNA in order to replicate, but RNA can replicate itself.

RNA came first and later on life switched to DNA-based inheritance. RNA evolved to store and expresses genetic information and causes the chemical reactions necessary to copy it. But the single-stranded RNA is unstable and can be damaged by enzymes. So, by using deoxyribose sugar instead of ribose, stable DNA evolved to pass genetic information with accuracy.