MCB 252 Study Guide - Midterm Guide: Post-Translational Modification, Gene Duplication, Nuclear Receptor

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~100 trillion cells in an adult, 210 different cell types. Stem cells - relatively undifferentiated cells that give rise to all other cells in tissue (reservoir). Asymmetric division- when one stem cell divides and makes a new stem cell and a differentiated cell. (stem cell renewal) Symmetric division - when two products are identical. Adult stem cells - give rise to many different cell types, but not all cell types. Icm makes endoderm, mesoderm, and ectoderm (primordial germ layers) Induce stem cells into damaged tissues in vivo and repair damage. Differentiate pluripotent stem cells in vitro with goal of growing tissues and organs. Convert adult cells into pluripotent stem cells. Transiently amplifying cells - slightly differentiated cells that have begun process of undergoing differentiation. Terminally differentiated cells - highly specialized cells that carry out the function of the tissue and no longer divide. Wound - cells need to divide at higher rate.