Q9 of 71 Page 40

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.

The number of ribonucleoside triphosphates is 10 times the number of deoxy ribonucleoside triphosphates, but only deoxy ribonucleotides are added during the DNA replication because:

1. The enzyme DNA polymerase only recognises deoxyribonucleotides triphosphates.


2. It incorporates the same as deoxy ribonucleotides during DNA replication.


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