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Karnataka Board PUCPUC Science 2nd PUC Class 12

In a nucleus, the number of ribonucleoside triphosphates is 10 times the number of deoxy x10 ribonucleoside triphosphates, but only deoxy ribonucleotides are added during the DNA replication.

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Question

In a nucleus, the number of ribonucleoside triphosphates is 10 times the number of deoxy x10 ribonucleoside triphosphates, but only deoxy ribonucleotides are added during the DNA replication. Suggest a mechanism.

Short/Brief Note
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Solution

DNA polymerase is highly specific to recognise only deoxy ribonucleoside triphosphates. Therefore it cannot hold RNA nucleotides.

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Chapter 6: Molecular Basis of Inheritance - VERY SHORT ANSWER [Page 41]

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NCERT Exemplar Biology Exemplar [English] Class 12
Chapter 6 Molecular Basis of Inheritance
VERY SHORT ANSWER | Q 9. | Page 41
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