Write in the correct answer for each after watching the animation. 1. RNA polymerase binds to the … 2. The most efficient control of eukaryotic gene expression is achieved at the level of … 3. Which of the following level(s) can gene expression be regulated in eukaryotes? 4. The addition of a phosphate to a protein after it is produced is an example of post-translational modification. 5. The exons of eukaryotic mRNA are moved and the introns are spliced together. Write in the correct answer for each after watching the animation. 1. RNA polymerase binds to the … 2. The most efficient control of eukaryotic gene expression is achieved at the level of … 3. Which of the following level(s) can gene expression be regulated in eukaryotes? 4. The addition of a phosphate to a protein after it is produced is an example of post-translational modification. 5. The exons of eukaryotic mRNA are moved and the introns are spliced together.