Which of the following is true about phosphodiester linkage?13’-phosphate group of one nucleotide unit is joined to the 3’-hydroxyl group of the next nucleotide25’-phosphate group of one nucleotide unit is joined to the 5’-hydroxyl group of the next nucleotide33’-phosphate group of one nucleotide unit is joined to the 5’-hydroxyl group of the next nucleotide45’-phosphate group of one nucleotide unit is joined to the 3’-hydroxyl group of the next nucleotideAnswer & explanation+Correct answer: option 45’-phosphate group of one nucleotide unit is joined to the 3’-hydroxyl group of the next nucleotide.
