Centromere is required for

  • [AIPMT 2005]
  • A

    Transcription

  • B

    Crossing over

  • C

    Cytoplasmic cleavage

  • D

    Movement of chromosomes towards poles

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Geneticist plot the relative locations of genes on chromosomes by which of these methods

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$(a)\quad (b)\quad  (c)\quad  (d)$

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