BIOL 121 Lecture Notes - Embryonic Stem Cell, P53, Smooth Muscle Tissue

• School: UBC
• Department: Biology
• Course: BIOL 121
• Professor: All

Document Summary

Is the process by which cells specialize in function. For example, a cell can become a neuron (nerve cell), a smooth muscle cell, or a blood cell (wbc or rbc) Stem cells are cells that have yet to differentiate. They are able to become any type of cell. They can be found in bone marrow in adults. Caused by: defect in cell cycle control, mutation that knocks out key genes. Are the brakes on the cell cycle to avoid abnormal growth. Genes that encourage cell growth initiate phases of cell cycle. P53 codes for regulatory transcription factor protein p53. Sometimes, cell death/apoptosis is a normal part of development and is carefully timed and regulated: cell movement and expansion. Many animal cells must move for normal development. Gastrulation: cells in different parts of a mass of cells rearranged themselves into three distinctive types of embryonic tissues, which then give rise to the skin, gut , etc.