Nucleotides portions used in making of nucleic acids

Question

Name the nucleotides “portions” which bind in the making of nucleic acids? What do you mean by the 5 and 3 extremities of the nucleic acids?

Answer 1

The phosphate class of one nucleotide joins to the pentose of other nucleotide and so forth to build the polynucleotide chain. Each and every extremity of a RNA or DNA chain can be differentiated from the other extremity in order to their terminal chemical entity. The phosphate-ended extremity is termed as 5-extremity and the pentose-ended extremity is termed as 3-extremity. Therefore RNA or DNA chains can be run all along the 5-3 way or all along the 3-5 way. Such ways are significant in various biological functions of RNA and DNA as some reactions particularly take place following one way or other way.