更新1:
Bare in mind shes only a student teacher .___.
Are people with down-syndrome biologically human?
2016-10-29 9:09 am
So my teacher said during class that "All humans have 46 chromosomes, if you don't have 46 chromosomes you are a different species" Then i asked her about donkeys and horses. Because their genetically similar, then she said. "Yes, but since they both have a different but similar amount of chromosomes they offspring (mule) will not be able to reproduce" then shut me up. I don't understand. People with down syndrome have a duplicate of the 21st chromosome meaning they have 47 chromosomes together. Yes, a lot of genetic mutations do this. But doesn't that make them not human? People with down syndrome can also make offspring. Doesn't a person with a different amount of chromosomes make the off spring infertile? HELP PLEASEEEEEE. And I'm not meaning it in a mean way. I'm speaking biologically.
回答 (7)
2016-10-29 6:47 pm
✔ 最佳答案
> Are people with down-syndrome biologically human? Yes.
> So my teacher said during class that "All humans have 46 chromosomes, if you don't have 46 chromosomes you are a different species"
No.
Down syndrome children and Turner syndrome girls are human. So are Klinefelter syndrome boys.
So are 47,XXX women and 47,XYY men.
These are people with a "syndrome." They're not from a separate isolated population somewhere. e.g. Down syndrome children have normal parents.
> Then i asked her about donkeys and horses.
Different species. There are existing feral populations of each. The hybrids have greatly reduced fertility.
> shes only a student teacher
She might not have been a biology major, then, or perhaps if she was, she missed the "populations biology" class that's an elective for juniors and seniors.
2016-10-29 1:04 pm
Chromosome number is merely one of many things that define a species as a whole, and not nearly as important as the general public seems to think it is. Individual variation is irrelevant.
2016-11-02 2:00 am
No. They are meatloaf Popsicles, sheeeesh
2016-10-29 9:13 am
Lmao what the f*ck
2016-11-03 9:46 pm
I have Turner syndrome, which means I'm missing a chromosome instead of having an extra one as in Down syndrome. I *strongly* object to the ridiculous and ignorant assertion that because I have 45 chromosomes instead of 46 I am an entirely different species. It would take a pretty invasive examination for most people to be able to tell a woman with TS from one with the "normal" number of chromosomes, so how exactly are we "not human"?
2016-10-29 9:14 am
Maybe your teacher just stuffed up when she said that, i'd ask her
2016-10-29 10:50 am
SHE? this is why i always say that women and science/logic don't mix.
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