A polymer constructed from nucleotides linked together.
By Joining a group nucleotides together and you get a polynucleotide. This could be a long string of Deoxyribonucleic acid in a cell or a shortstop strand used by scientists in a science laboratory. Deoxyribonucleic acid and Ribonucleic acid are essential in making organic life forms. But what brand DNA and Ribonucleic acid shuffle up of organic mote of a particular composition called nucleotides. If you had a plaything tug shuffle of Legos, DNA would be the tower and nucleotides the individual Legos. A polynucleotide, therefore, is a chain of nucleotides. RNA is a polynucleotide, and DNA is a pair of polynucleotides.