twoknee23 twoknee23
  • 19-08-2016
  • Biology
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4 building blocks of dna

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jaya6
jaya6 jaya6
  • 19-08-2016
Cytosine guanine adenine thymine
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CindyMarie446
CindyMarie446 CindyMarie446
  • 19-08-2016
To form a strand of DNA, the nucleotides are liked into chains with the theposphate and suger groups alternating. so the four types of nitrogenbases foind in the nucleotides are :
adenine (A)
thymine  (T)
guanine (G)
cytosine (C)
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