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Home Q & A Board Biology-Related Homework Help Cell Biology
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FollowTheFez FollowTheFez
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10 years ago
True or false?
Only one of three phosphate groups in a nucleotide precursor is present in a DNA polymer.


Why I think it's true...
- there is only one phosphate group in a nucleotide.
- a nucleotide is a DNA precursor

Why I think it's false...
- I didn't think there were 3 different phosphate groups (trick question?) and I can't find any information on there being so.
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wrote...
#1
10 years ago
No, only one according to this pic:



The other two called pyrophosphate are catayliticaly broken off to release energy needed to make the DNA bond.
Would you know my name, if I saw you in heaven?

Eric Clapton
wrote...
#2
10 years ago
Sounds tricky because it's a nucleoside triphosphate, which cleaves 2 phosphates to form a nucleotide triphosphate. Then the nucleotide triphosphate is connected to the new strand.
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