trisomy 18
noun[U]
medicalspecialized(alsoTrisomy 18)uk/ˌtrɪ.sə.mi eɪˈtiːn/us/ˌtraɪ.soʊ.mi eɪˈtiːn/arareand veryseriousgeneticconditionin which there is anadditionalcopyofchromosome18 in some or all of the body'scells:
（因多出一条18号染色体而引起的）18三体Otherchromosomalabnormalitiesincludetrisomy 18 (Edwards'syndrome) and trisomy 13 (Patausyndrome).其他染色体异常包括18三体（爱德华氏综合征）和13三体（帕塔综合征）。
Somechildrenwith Trisomy 18 havereachedadulthood.有些患有18三体的儿童能长大成人。
Synonym
Edwards' syndrome
- Meansurvivaltime(MST) for trisomy 18 is 14.5days, and MST for trisomy 13 is 7days.
- Onerecentcaseinvolvedafetusdiagnosedwith Trisomy 18, adeadlychromosomalabnormality.
- Amniocentesis is atestthatdetectsmostchromosomaldisorderssuch as Down'ssyndrome, trisomy 18 andspinabifida byinsertinganeedlethrough theabdomentoremovefluidfrom theuterus.
Genetics
- adenine
- allele
- anaphase
- biohacker
- biohacking
- biotech
- gene amplification
- genotype
- heterozygote
- homologous
- homologue
- homozygote
- hybridization
- paternal
- ribosome
- rRNA
- segregate
- segregation
- sequence
- transgenic