DNA/RNA Educational Set

This is an educational set of pieces for teaching DNA replication and transcription to RNA. It was designed regardless the side of the pieces (e.g.: there are some of these kits that have phosphate, sugar and the bases for right and left sides, forcing you to print double the number of pieces and the DNA can only be read in one way, being upside down on the other).

Suggestions for kit sizes:

Small kit:
2 pieces of each base, 10 sugars and 10 phosphates
It allows to show a nice pairing but will allow only a 4 base strand.

Big kit:
6 pieces for each base, 30 sugars and 30 phosphates
Allows to build a longer strand, simulate DNA replication on both strands and allow a long RNA strand for transcription.