Through which among the following linkages are the two nucleotides connected through the 3’-5’ end?(a) Phosphodiether linkage(b) Phosphodisulphide linkage(c) Phosphodinitrate linkage(d) Phosphodiester linkageI got this question in an online interview.This interesting question is from Structure of a Polynucleotide Chain topic in section Molecular Basis of Inheritance of Biology – Class 12

Through which among the following linkages are the two nucleotides con

1.	Through which among the following linkages are the two nucleotides connected through the 3’-5’ end?(a) Phosphodiether linkage(b) Phosphodisulphide linkage(c) Phosphodinitrate linkage(d) Phosphodiester linkageI got this question in an online interview.This interesting question is from Structure of a Polynucleotide Chain topic in section Molecular Basis of Inheritance of Biology – Class 12
Answer» The correct OPTION is (d) PHOSPHODIESTER linkage The best I can explain: When two nucleotides come close to each other, they form a linkage. This linkage is SEEN from the 3’-5’ end. This type of a linkage is CALLED as the phosphodiester linkage. A phosphodiester linkage between 2 nucleotides forms a dinucleotide.

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