The expression of
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What does "the expression of " mean in the underlined sentence below please?
"Treating cancer is fiendishly difficult because the diseased cells have exactly the same genetic material as our own healthy cells. All that changes in a cancerous cell is the expression of those genes. In a bacterial or viral disease, the biology of the disease agents is very different to our own. In these cases scientists must simply find and attack a biological pathway in the disease agent that is not present in humans."
Top answer
SeyyedAli expression The expression of a gene is the functioning of that gene. Through chemical switches, genes are turned on and turned off. When a gene is turned on, it expresses itself, that is, it does its job, which is to direct the cellular machinery to produce a specific protein useful to the cell.
- SeyyedAli expression The expression of a gene is the functioning of that gene.
- Through chemical switches, genes are turned on and turned off.
- When a gene is turned on, it expresses itself, that is, it does its job, which is to direct the cellular machinery to produce a specific protein useful to the cell.
- The same genes are present in every cell of the body, but only those genes that create and maintain blood cells are expressed in blood cells, only those genes that create and maintain kidney cells are expressed in kidney cells, only those genes that create and maintain skin cells are expressed in skin cells, and so on.
- Genes that are not used to produce the cell type they find themselves in are "turned off", that is, not expressed.
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SeyyedAliexpression
The expression of a gene is the functioning of that gene. Through chemical switches, genes are turned on and turned off. When a gene is turned on, it expresses itself, that is, it does its job, which is to direct the cellular machinery to produce a specific protein useful to the cell.
The same genes are present in every ce
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