24 × 36". Help make your students real gene jockeys! This step-by-step poster follows the instructions for our Colony Transformation Kits (item# 211082, item# 211088, and item# 211142) and aids students in visualizing how to perform each technique in the lab exercise. Colorful illustrations depict how to transform the DNA from one organism into a different organism (E. coli). Also serves as a great introduction or review.