Intended for healthcare professionals


Cloning may cause health defects

BMJ 1999; 318 doi: (Published 08 May 1999) Cite this as: BMJ 1999;318:1230
  1. Judy Jones
  1. MalmesburyWiltshire

    Cloning may cause long term health defects, a study by French scientists has suggested. A two month old calf, cloned from genes taken from the ear of an adult cow, died after developing blood and heart problems.

    The cloning process seemed to have interfered with the normal genetic functioning of the developing calf, according to the researchers whose findings are reported in the Lancet …

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