$A$ dinucleotide is obtained by joining two nucleotides together by a phosphodiester linkage. Between which carbons of the sugar of the nucleotides are these linkages present?

  • A
    $5'$ and $3'$
  • B
    $5'$ and $5'$
  • C
    $3'$ and $3'$
  • D
    $1'$ and $5'$

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