polancomarina
polancomarina polancomarina
  • 15-08-2017
  • Biology
contestada

People with Down syndrome usually have ______ of the 21st chromosome.

monosomy

diploidy

haploidy

trisomy

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Respuesta :

prisenriquezc prisenriquezc
  • 15-08-2017
It is caused by a trisomy in the 21st chromosome 
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svinton2 svinton2
  • 15-08-2017
People with Down syndrome usually have trisomy of the 21st chromosome.
Answer Link

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