| 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 |
the condition of having three copies of a chromosome instead of two.
출처: www.uvm.edu/~cgep/Education/Glossary.html
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| trisomy |
TRI-som-mee A cell with one extra chromosome. 298
출처: www.mhhe.com/biosci/genbio/life/glossaryt.mhtml
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| trisomy 18 |
a genetic disorder in which an individual has an extra 18th chromosome, characterized by mental retardation, abnormal skull shape, malformed ears, and cardiac defects; the condition is usually fatal within several weeks or months of birth
출처: depts.washington.edu/pwdlearn/web/glossary/glossar...
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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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