polynucleotide chain definition
A polynucleotide molecule is a biopolymer composed of 13 or more nucleotide monomers covalently bonded in a chain. DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) are examples of polynucleotides with distinct biological function.The prefix poly comes from the ancient Greek ÏÎ¿Î»ÏÏ (polys, many).DNA consists of two chains of polynucleotides, with each chain in the form of a helical spiral.NA (deoxyribonucleic acid) and RNA (ribonucleic acid) are examples of polynucleotides with distinct biological function. The prefix poly comes from the ancient Greek ÏÎ¿Î»ÏÏ (polys, many). DNA consists of two chains of polynucleotides, with each chain in the form of a helical spiral.