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How are Down syndrome and Klinefelter syndrome genetically similar?

In: Down Syndrome [Edit categories]

Answer:

Both syndrome's indicate the presence of a 47th chromosome (or extra part of a chromosome). Most humans have 23 pairs of chromosomes, totaling 46 chromosomes.

For Down's syndrome, the 47th chromosome appears with the 21st pairing. For Klinefelter's syndrome the 47th chromosome appears with the 26th pairing (the gender chromosomes.)

First answer by Jkmyoung. Last edit by Jkmyoung. Contributor trust: 413 [recommend contributor ]. Question popularity: 1 [recommend question].

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Relevant answers:

Is Klinefelter's syndrome the same as Down syndrome?
No. Both are trisomies (when someone has three of a certain type of chromosome instead of two), but Klinefelter's is with XXY and Down syndrome is a trisomy of chromosome 21.
Is there any syndrome that is similar to Down syndrome?
No, there is not. Down syndrome is unique in its characteristics and scientific identification.2nd Answer:Sort of . . . there are other 'mistakes' that occur for the same reason that Down syndrome...
If you have Down syndrome will you have a Down syndrome kid?
I have a daughter with Downs and I have been told it is VERY PROBABLE...ask your pediatricianThere is research on that subject. It can be found in scholarly journals. The ones that I have read say...
What is the genetic basis of Down syndrome and Klinefelter's syndrome?
Klinefelter syndrome is when a man is born with an additional X chromosome. Therefore, he is XXY.
Can a male with Down syndrome and a female with Down syndrome have a child with Down syndrome?
approximately half of the offspring of someone with Down syndrome also have the syndrome themselves

How are Down syndrome and Klinefelter syndrome genetically similar?

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