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Why are ddNTP used in dna …

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Why are ddNTP used in dna sequencing
  • 2 answers

Ishana Milli 4 years, 9 months ago

Ddntp stands for dideoxyribose triphosphate. These molecules do not have oxygen on the 3rd and 2nd carbon positions on the bases. Thus they do not have free sites to react and make a bond unlike those sugars which have functional gruops attached on some positions to carbon providing free site to react and make a bond like deoxyribose and ribose sugar . By adding ddntps chain elongation can be inhibited because they result in the termination of the newly synthesised dna chains.

Ritu Kahar 5 years ago

ddNTP are chain elongating inhibitors which can lead to the termination of the DNA sequence
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