Types of Down’s Syndrome

Resource type: Frequently Asked Questions  —  Date posted: March 9th, 2012   Number of views: 1227

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Is there more than one type of Down's Syndrome?

There are three types of this condition:

• Regular trisomy 21

All the cells have an extra chromosome 21.

94 % of people with Down’s Syndrome have this type.

• Translocation

The extra chromosome 21 material is attached to another chromosome. This accounts for 4% of cases.

• Mosaic

Only some of the cells have an extra chromsome21, resulting in milder features.

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• Down’s Syndrome

Down’s Syndrome

How to get help from the SEATSS Team

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Downsyndrome extra 21- Highly recommended

Family Resources

Whizz Kids

Family Resources

Twinkl Website great resources

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Illustrations