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Down syndrome: Difference between revisions
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The third cause of trisomy 21 is mosaicism. Mosaicism is a condition were an individual has cells that do not all have the same genes. Some cells have a normal number of chromosomes while others have an abnormal amount. This condition can affect a person’s sperm and egg cells as well. If a parents reproductive cells has and abnormal amount of chromosomes, their child could be born with Down syndrome.[http://www.nlm.nih.gov/medlineplus/ency/article/001317.htm] | The third cause of trisomy 21 is mosaicism. Mosaicism is a condition were an individual has cells that do not all have the same genes. Some cells have a normal number of chromosomes while others have an abnormal amount. This condition can affect a person’s sperm and egg cells as well. If a parents reproductive cells has and abnormal amount of chromosomes, their child could be born with Down syndrome.[http://www.nlm.nih.gov/medlineplus/ency/article/001317.htm] | ||
==Health== | |||
==Common Characteristics== | ==Common Characteristics== | ||
