Question

Write two of the major differences between D.N.A and R.N.A.

Answer 1

Hint: To solve this question, firstly we have to understand about D.N.A and R.N.A and then we will be studying the parameters that differentiate them with each other.

Complete answer:
Both DNA and RNA are made from nucleotides, each containing a five-carbon (5-C) sugar backbone, pentose sugar, a phosphate group, and a nitrogen base.
DNA provides codes for the activities of a cell whereas the RNA converts that code into proteins for carrying out various cellular functions.
The chemical composition of nucleotides has a phosphate group, sugar and a nitrogenous base.
They are one of the main causes of cancer-causing agents. Some of the nucleotides are adenosine, guanosine and many more.
 A nucleoside has a chemical composition of a sugar and a base which doesn’t have a phosphate group. They are used in medicines which are used against viruses and cancer-causing agents. Some of the nucleosides are as same as nucleotides only with the addition of phosphate groups in it.

DNA (Deoxyribose nucleic acid), as the name suggests, consists of double stranded helix structure, having thymine and deoxyribose sugar.
While, RNA is single stranded which allows for the binding of anticodons during translation. RNA consisting of uracil and ribose sugar. RNA does not replicate on its own. It synthesizes from DNA when it is required. The base pairing of RNA includes – GC (Guanine pairs with Cytosine), A-U (Adenine pairs with Uracil).

Note:
-DNA (as the name indicates) is double stranded, while RNA is single stranded.
-RNA contains ribose as sugar, whereas DNA contains deoxyribose.
-DNA provides codes for the activities of the cell whereas RNA converts that code into proteins for carrying out cell functions.