Q160 / 160 · JIPMER 2005 · Zoology

DNA replication generally proceeds in a

  • Correct answer
    A
    $5 \rightarrow 3$ direction
  • B
    $3 \rightarrow 5$ direction
  • C
    $3 \rightarrow 3$ direction
  • D
    $5 \rightarrow 5$ direction

Solution

DNA synthesis or replication always proceeds in $\mathrm{C}_5 \rightarrow \mathrm{C}_3$ direction. Both the strands replicate by the addition of nucleotide monomer in $\mathrm{C}_5 \rightarrow \mathrm{C}_3$ direction.

Hence, the correct answer is option: 'A'.

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