MCD BIO 90 Lecture Notes - Lecture 2: Transcription Factor, Teratoma, Personalized Medicine

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Gene expression is the process by which information from a gene is used in the synthesis of a functional gene product. Transcription factors are proteins that help turn specific genes on or off by binding to nearby. We all have the same dna in the nucleus of every cell. Depending on the function of the cell, different part of this string of dna is read. The parts that are read are decided by the gene expression, which is decided by the transcription factors. Transcription factors allow cells to perform logic operations and combine different sources of information to decide whether to express a gene. Receptors are found in the membrane and receive signals that fit in with the type of molecule. Transcription factor causes dna to become rna (transcription) Rna become protein (translation) and turns gene on. Gene expression refers to all of the genes that are on. The reading of gene expression decides the type of cell.

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