Changes in Gene Expression

Changes in Gene Expression

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Unformatted text preview: uscle. o When these cells commit to becoming muscle cells, they stop dividing. o In response to specific signals, precursors express the transcription factor MyoD, which alters gene expression to stop progression through cell cycle. o With MyoD, you get mRNA • Signals that cause cells to transcribe different genes (how do cells know when to need MyoD) o Cytoplasmic determinants: chemical factors that are unevenly distributed among different cells due to cytoplasmic segregation during cell division. o Outside chemical sig...
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This document was uploaded on 03/06/2014 for the course BIO 020.151 at Johns Hopkins.

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