Easy to construct the three dimensional model of DNA. Emphasizing the base pair sequence and function of DNA, the sturdy, colorful bases snap together in the correct sequence, and the pairs attach to a center rod representing hydrogen bonds.
4D Anatomy Human Heart Model, 4.5in model contains 32 detachable, hand-painted medical education-quality organs and parts and a display stand, Also includes illustrated assembly guide and description of the anatomy, Has unique puzzle challenge, For ages 8plus
Enlarged 20,000 times. The model shows delicate structure of an animal cell. Features organelles nucleus, endoplasmic reticulum, mitochondria, ribosomes respectively polysomic and Golgi apparatus. Also showing centrioles, lysosomes and fat vacuoles.