Replication and Protein synthesis

Includes removal of introns from RNA, transcription, translation, mutations.

A pdf topic chapter on gene expression, including transcription and translation, RNA structure etc. Goes into more detail than you need in places, good extension read.

Another animation on this experiment.

Comprehensive explanation with diagrams of the Meselson Stahl experiment to prove semi-conservative replication, from Khan Academy site.

Youtube animation, has a lot more detail than you need.

Animation to explain this experiment.