Which of the following statements is not true for retroviruses

  • [AIPMT 2004]
  • A

    The gentic material in mature retroviruses in $RNA$

  • B

    Retroviruses are causative agents or certain kinds of cancer in man

  • C

    $DNA$  is not present at any stage in the life cycle of retroviruses

  • D

    Retroviruses carry gene for $RNA-$ dependent $DNA$  polymerase

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