mu4ngCh7eriepigle mu4ngCh7eriepigle
  • 02-03-2017
  • Social Studies
contestada

The nitrogen bases cytosine and thymine are
a.purines.
b.a phosphate group.
c. a sugar group
d. pyrimidines

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Аноним Аноним
  • 02-03-2017
D. pyrimidines......
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