Human karyotypes for teaching: (47,XX,+13, Trisomy 13)

These karyotypes are from an abnormal female. There is a full set of 23 homologous pairs, plus an extra chromosome 13. These individuals sometimes complete fetal development and are born, but are severely mentally retarded, and physically malformed. They seldom survive beyond a few months age. The condition is also known as Patau's syndrome.

These karyotypes are from the Wisconsin State Laboratory of Hygiene. They are intended for use in teaching to help students study human chromosomes. Copyright for these images remains with the State Laboratory of Hygiene, apply to them for permission for any other use than non-profit teaching.

Each karyotype is available in one of three forms:

  • The original unmodified smear. These may have extra material, and often have some chromosomes crossed, which makes them less useful for a class exercise in which students cut apart and arrange the individual chromosomes.
  • A copy of the original, with extraneous materials removed, crossed chromosomes separated, and all chromosomes separated slightly to faciliate cutting apart of the chromosomes in a printed copy. This form is intended for student use in an introductory biology class.
  • A "key", with the chromosomes arranged in standard order.

To transfer the image to your computer, click on the appropriate image name, and save it to your hard disk.

ZooWeb Number

Original image

Modified image

Key

ZWK99032

ZWK99032o.jpeg

ZWK99032.jpeg

ZWK99032k.jpeg

ZWK99033

ZWK99033o.jpeg

ZWK99033.jpeg

ZWK99033k.jpeg

ZWK99034

ZWK99034o.jpeg

ZWK99034.jpeg

ZWK99034k.jpeg

For technical information on the methodology by which these smears were created click here.

Karyotype_home


Do you have suggestions or corrections for this page? Please email Larry Phelps (lphelps@uwc.edu)

Picture© 1998 The Board of Regents of the University of Wisconsin System.

Click here to email comments regarding BioWeb or its links.