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Answered 2011-11-27 08:38:22

No, and No, and the Difference in the expression of Genetic Materials [genes] are what distinguishes one Cell Type from another.

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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 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.

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.

yeah no sh**Genes do in fact contain genes inside of them.

All body cells have the same genes except for the sex cells (sperm and ova). They do not use the same genes. A muscle cell isn't using the same genes as a nerve cell does. Otherwise the muscle cell and the nerve cell would not be different nor do different things.

cells express different genes in response to cell signaling

If the cells are from one individual, all will have the same genes except their sex cells which have 1/2 the number. A dog will have different genes from a cat. The genes make the cat different from the dog and human.

Cells that are part of a multi-cellular organism typically have the same metabolic functions as single-celled organisms, however differences exist. Multicellular cells will have a specialized function, typically do not have to independently gather food and will express target genes selectively rather than all of the genes necessary for survival that a single-celled organism might express.

In one way or another, all of them. However, we generally don't speak of natural selection in terms of how it affects cells (except perhaps germline cells), but in terms of how it affects populations, lineages or allele frequencies in gene pools. In population genetics, cells are merely the containers for collections of genes, and the machines that express those genes.

No. This is why you have different types of cells.

Control genes impede certain genes from expressing themselves and allow others to express themselves/ Thus a liver cell will have basically the same genome as a neuron, but will not express axon development and the neuron will not express bile development.

The sperm and egg sex cells (or gametes) have both recessive and dominant genes in them.

Bacteria can express human genes because the language of genes is universal among species. If bacteria genes were coded differently humans wouldn't be affected by them.

Genes tell cells how to make proteins.

Achrondoplasia is in all of the cells that have genes in them, not just the sex cells or somatic cells.

If you mean change in genes, this is done by a process called recombination, whereby chromosomes switch legs at random points to help add variety to our genes. But I suspect you mean how identical cells in some kind of embryo form different types of cells. At a point in the growth of the embryo, the cells start reacting to external factors, mostly chemicals produced by the cells around it. Although all cells contain all genes, the chemicals act as a switch to turn genes on or off. Cells on the outside of the embryo get different signals than those on the inner layers. Cells also tend to express genes that are expressed in the cells surrounding it, because of the chemical signals given off by those cells. As cells start to change what genes they express and become more specialized they give off more and more specific chemicals, making the differentiation that much more complex. This is a very complicated process, but I hope that this very brief overview has helped. For more information, research developmental biology, differentiation, and specialization. I have a BS in molecular and cell biology.

The Cells hold the genes. Genes are a part of DNA, which is located in the Nucleus of a Cell.