EVERYDAY SCIENCE

Detailed explanation-1: -DNA is the main hereditary material, but some contain RNA too, e.g. retrovirus. RNA mostly plays the role of a messenger in higher organisms. Though both are nucleic acids, why is there a difference in functions? Scientists elucidate that, this is due to the difference between the chemical structure of DNA and RNA.

Detailed explanation-2: -DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA.

Detailed explanation-3: -So, why did DNA evolve to be the primary genetic material over RNA? According to the RNA world hypothesis, DNA evolved to store the genetic information instead of RNA because DNA is chemically more stable than RNA. Moreover, since DNA has a double-stranded structure, it has the ability to correct errors in replication.

Detailed explanation-4: -The main reason is that RNA is less stable than DNA, which would not function well to store genetic material.