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University of Washington

Uwmc Cytogenetics Laboratory: Cytogenetics Gallery

For Students 9th - 10th
This site opens with an excellent introduction to Cytogenetics. Explore this site to learn about chromosomes, human karyotypes and more.
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PPT
Other

Genome British Columbia: Chromosomes

For Students 9th - 10th
This is an excellent PowerPoint presentation that explains what chromosomes are. Many slides are also accompanied by detailed notes.