Your muscle cells are able to express a different complement of proteins from your brain cells because

Question

Quizplus · Accepted Answer

Muscle cells and brain cells contain the same set of genes in an individual's genome. The difference in protein expression between these cell types is due to the cell-specific regulation of gene expression. Transcription factors, which are proteins that help turn specific genes on or off by binding to nearby DNA, play a crucial role in this process. In muscle cells, certain transcription factors are active that promote the expression of muscle-specific genes, while in brain cells, a different set of transcription factors activates the expression of brain-specific genes. This regulatory mechanism allows cells with the same DNA to function differently and form specialized tissues.

Your Muscle Cells Are Able to Express a Different Complement