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* Gnetics 10
 #136139  
  kashmala - 11/06/06 23:26
 
  A fetus is most likely to be carried to term with
which of the following chromosomal abnormalities?
A Triploidy
B Monosomy
C Aneuploidy
D Tetraploidy
E Mosaicism
 
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* Re:Gnetics 10
#546807
  neoplasia - 11/06/06 23:27
 
  eeeee  
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* Re:Gnetics 10
#546836
  step1_ca - 11/06/06 23:39
 
  ee  
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* Re:Gnetics 10
#546862
  kashmala - 11/06/06 23:49
 
  yes E  
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* Re:Gnetics 10
#546863
  kashmala - 11/06/06 23:50
 
  E
There are a greater number of potentially normal
cells having the proper chromosomal complement with mo-
saicism, and this may allow babies with abnormalities of
chromosome number to make it to term and beyond. Trip-
loid fetuses rarely go past the second trimester and are
virtually never liveborn. Likewise, tetraploidy accounts for
many first-trimester fetal losses and is not survivable. Loss
of a chromosome is devastating; the only monosomy in
which there is possible survival to term is Turner syndrome
(monosomy X). Most aneuploid conditions (trisomies and
monosomies) lead to fetal demise. Trisomy 21 is the most
likely to go to term.
 
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