The mark consists of a galaxy spiral containing bright gaseous-looking matter in the center, 4 to 5 starry rings around the center in an inward spiral and 4 rings made of arrows pointing clockwise spiraling inward toward the center of the galaxy spiral; the word, Osteoblast, appears near the top left and on top of the next to the last starry ring away from the center of the galaxy spiral; the word, Differentiation, appears below and to the left of the center of the galaxy spiral just above the ring created by the tail of the fourth arrow toward the outside of the galaxy spiral; the word, Proliferation, appears on top of the starry ring just outside and below the center of the galaxy spiral; a twisted DNA double helix flows from below and to the right of the galaxy spiral between the third starry ring from the bottom of the center of the galaxy spiral and the outer ring generated by the mingling of the tails of the third and fourth arrows (counting from the center of the galaxy spiral); the DNA double helix flows upward and off the picture to the right; background shows gases and stars appearing to come off of the last starry ring at upper left .