Purines found both in $DNA$ and $RNA$ are

  • A
    Adenine and thymine
  • B
    Adenine and guanine
  • C
    Guanine and cytosine
  • D
    Cytosine and thymine

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The $3' \rightarrow 5'$ phosphodiester linkages inside a polynucleotide chain serve to join

$DNA$ contains

If the content of cytosine and guanine in $DNA$ is $40\%$,what is the content of adenine (in $\%$)?

What is the approximate molar concentration of $DNA$ in a human cell?

What is the number of phosphodiester bonds in a $DNA$ molecule containing $10$ base pairs?

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