Question

Why RNA is more reactive than DNA

Answer 1

Hello friend!!!

Here's your answer.

◆RNA is made up of ribose sugar (plz see the attachment for its structure )
Whereas , DNA is made up of de oxy ribose sugar. (please see the attachment for its structure)
Due to the presence of –OH group in the ribose sugar, it is more active.

◆Also, the nitrogenous base is hydrophobic whereas the sugar end and the phosphoric acid end present in both RNA & DNA is hydrophilic.

Nitrogenous base always wants to stay away from the universal solvent.

Since DNA is double stranded, it has its nitrogenous base in the interior of both the strands , thus keeping it away from water.

But RNA is single stranded, hence its nitrogenous base is not away from water, and thus is reactive.

HOPE IT HELPS..... :-)

Answer 2

DNA contains deoxyribose,while RNA contains ribose, characterised by the presence of the 2'-hydroxyl group on the pentose ring . This hydroxyl group make RNA less stable than DNA because it is more susceptible to hydrolysis.  it will help  u  friend