An excellent hands-on activity in human cytogenetics that explores the chromosomal basis of several disorders. Using illustrations of G-banded, magnetic chromosomes and a printed, magnetic karyotype layout board, students prepare and analyze normal and abnormal human karyotypes. They identify each magnetic chromosome and its homologous pair based upon size, centromere position, and banding pattern, then arrange them in standard karyotype format on the magnetic layout board.

Magnetic chromosome sets can be adjusted to represent a normal male or female, a Down syndrome (trisomy 21) male or female, a Klinefelter syndrome male, or a Turner syndrome female.

The 8-Station Kit is for a class of 32 students. The 1-Station Kit can be used as an additional station for large classes, as a teacher demonstration, or as a small-group homeschooling activity. Kit materials are reusable.

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