| trisomy 21 |
mongolism: a congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardation
출처: wordnet.princeton.edu/perl/webwn
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| trisomy 21 |
a syndrome caused by an extra number 21 chromosome. It's a combination of defects leading to some degree of mental retardation and characteristic facial features. The heart, eyes and hearing may also be affected.
출처: https://www.healthforums.com/library/1,1277,articl...
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| trisomy 21 |
A trisomy for chromosome number 21, or an extra chromosome-21. This is the most common of the trisomies and gives rise to Down syndrome. Research has shown that the commonest source of the extra chromosome is a mistake in the first division of meiosis in the egg cell (during the many years it rests as a primary oocyte).
출처: www.jansen.com.au/Dictionary_SU.html
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| trisomy 21 |
a genetic disorder in which an individual has an extra 21st chromosome, typically characterized by short stature, low muscle tone, cardiac problems, GI malformations and a distinct facial appearance; also called Down syndrome
출처: depts.washington.edu/pwdlearn/web/glossary/glossar...
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| trisomy 21 |
the presence of three #21 chromosomes, also known as Down syndrome.
출처: www.uchicagokidshospital.org/online-library/conten...
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