heherat77
heherat77 heherat77
  • 12-01-2021
  • Biology
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help please this is for biology

help please this is for biology class=

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raduoprea160
raduoprea160 raduoprea160
  • 12-01-2021

a base made out of two rings is a purine, while a base made out of one ring is a pyrimidine, therefore the first one is a purine and the second one is a pyrimidine

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