How is a polynucleotide chain read in a nucleic acid structure?
A)from the poly(U)head to the poly(A)tail
B)from the 3'-end to the 5'-tail
C)from the 5'-end to the 3'-end
D)from the poly-p head to the 5'-end

Question

Quizplus · Accepted Answer

A polynucleotide chain is read in a nucleic acid structure from the 5'-end to the 3'-end. This directionality is due to the specific chemical bonds between nucleotides, which create a sugar-phosphate backbone with a free phosphate group at the 5' end and a free hydroxyl group at the 3' end. The directionality of the chain is important in DNA replication, transcription, and translation, as it provides a template for the synthesis of new nucleic acid strands in a specific directional order.

How Is a Polynucleotide Chain Read in a Nucleic Acid