No all the cells do not express all the genes.If it expressed all the genes we must have every habit of our ancestors including hereditary diseases.Since we lack some of our ancestor's character we can conclude that all the cells do not express all the genes
All cells have genes
They express different genes
express different genes
All cells in a multicellular organism possess the same genes. However, different cell types express different genes. Indeed, that is what makes the cells different. During development, cells are directed towards particular lineages, each lineage activating particular sets of genes, genes that confer a particular identity on a cell and the appropriate properties.
No cell must express all genes all the time. Out of all the genes in the entire genome, only a specific subset is required for a specific cell type. To make sure that a type of cell effectively performs only its own function, cells must control gene expression to express only the genes necessary for its function.
they only express certain genes
All your genes are present in your liver cells
express different genes in response to cell signaling
A complete set of their genes, and retain the ability to express those genes under certain circumstances.
For the most part, all cells within a single organism have the same set of DNA and genes. Cells in different parts of the body express genes differently, which is what allows the different cell types to exist.Certain cells within an organism may develop mutations in their genetic information, thus resulting in cells that do not have the same DNA and genes. An example of this is cancer. In addition, different cells may silence one chromosome and only express the genes in the other. This is the case in females, which have two X chromosomes (one from their mother and one from their father). In each cell, one of the X chromosomes is randomly silenced, so the genes expressed in different cells will vary depending on which X chromosome is silenced and which is expressed.