Two free ribonucleotide units are interlinked with

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

How is the first ribonucleotide different from others in the RNA chain?

Write three differences between Deoxyribonuleotide and ribonucleotide.

Explain why meiosis and gametogenesis are always interlinked ?