Q. The 3′ - 5′ phosphodiester linkages inside a polynucleotide chain serve to join
A) one DNA strand with the other DNA strand
B) one nucleoside with another nucleoside
C) one nucleotide with another nucleotide
D) one nitrogenous base with pentose sugar. (Main 2010)
Explanation
The phosphodiester bonds is formed between the phosphate group, which is connected to carbon 5′ of the sugar residue of one nucleotide and carbon 3′ of the sugar residue of the next nucleotide.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.