This video explains the relationship between DNA, chromosomes and genes. To best understand this video you should make sure you have watched my 'What is DNA?' video. Chromosomes are made of DNA and genes are segments of chromosomes. Genes contain the code required to direct the manufacture of a polypeptide or RNA molecule. This occurs during Transcription and Translation which are part of Protein Synthesis. For more Biology video lessons check out www.anytimeeducation.com