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From amniocentesis to karyotype HTML5


A karyotype is an ordered display of an individual’s chromosomes. A karyotype provides information about the number of chromosomes as well as  about abnormalities in the chromosome structure. Amniocentesis is a technique for withdrawing  fetal cells from which chromosomes can be extracted.

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Learning goals

  • To understand the principle of amniocentesis.
  • To identify the main steps used in the the karyotyping procedure.
  • To understand why one might be interested in analysing a karyotype.

Learn more

Amniocentesis is a prerequisite to analysing chromosomes from fetal cells. In amniocentesis, a long needle is placed into the amnion where a sample of fluid containing fetal cells is…

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