1. Write in your notebook :
Chapter 2 : Gene expression in specialized cells
How can specialized cells be so different when they have the same DNA?
2. Watch the video : L’ADN. After viewing it, on a blank sheet of paper, write down the main ideas you have selected. Look for at least several minutes before restarting the video to complete or correct your key ideas.
3. Make a diagram of a DNA portion composed of a sequence of 10 nucleotides per strand.