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3. Down’s Syndrome Down’s syndrome is a genetic disorder in which a male or female has an extra chromosome. A normal person has 46 chromosomes, but a person with Down’s Syndrome has 47 chrosomes. To be extact, a person with Down’s Syndrome has an extra chromosome #21. This extra chromosome causes some physical defects that are characteristic of every person that has Down’s Syndrome.

4. Down’s Syndrome Genetic Disorder Normal Person = 46 chromosomes Down’s Syndrome = 47 chromosomes Extra chromosome #21 Males and females can be affected Physical Defects

5. Down’s Syndrome Genetic Disorder Normal Person = 46 chromosomes Down’s Syndrome = 47 chromosomes Extra chromosome #21 Males and females can be affected Physical Defects

6. Down’s Syndrome Genetic Disorder Normal Person = 46 chromosomes Down’s Syndrome = 47 chromosomes Extra chromosome #21 Males and females can be affected Physical Defects

7. Genetic Disorder Normal person is born with 46 chromosomes Down’s Syndrome = 47 chromosomes Extra chromosome #21 Males and females can be affected Physical Defects

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9. Genetic Disorder Normal person is born with 46 chromosomes Down’s Syndrome = 47 chromosomes Extra chromosome #21 Males and females can be affected Physical Defects

10. Genetic Disorder Normal person is born with 46 chromosomes Down’s Syndrome = 47 chromosomes Extra chromosome #21 Males and females can be affected Physical Defects

11. Genetic Disorder Normal person is born with 46 chromosomes Down’s Syndrome = 47 chromosomes Extra chromosome #21 Males and females can be affected Physical Defects

12. Genetic disorderNormal person is born with 46 chromosomes Down’s Syndrome = 47 chromosomes Extra chromosome #21 Males and females can be affected Physical Defects

13. Genetic Disorder Normal person is born with 46 chromosomes Down’s Syndrome = 47 chromosomes Extra chromosome #21 Males and females can be affected Physical Defects