RNA
The DNA serves as a template for the formation of a molecule called messenger RNA.(mRNA) The double helix of the DNA unzips at the appropriate site of the gene that needs to be expressed and through the action of an enzyme called RNA polymerase II begins to form mRNA.

 
Once assembled, the mRNA finds its way through holes in the nuclear membrane and into the cytoplasm.

 
View the video on the right and see if you can identify the steps of translation. The video shows the transcription of the gene coding for haemoglobin and the eventual translation into a protein. A slight mutation in the protein causes the disease known as sickle cell anaemia.
Continue with translation of the DNA code into protein