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All your genes are present in your liver cells

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14y ago

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How would you expect the genes in the cells of your finger to compare with the genes in the cells of your liver?

Whether the DNA is from your finger, your liver, or your brain, the genes are all there. Depending on where the cell differentiated, different genes are activated while others are dormant. The genes in liver are also present in fingers, they just aren't activated. As of right now, scientists have no way of activating or deactivating a gene.


How does a liver cell differ from a heart cell?

brain cells are activated by brain genes and heart cells are activated by heart genes. that's how they function, by their genes


Why can liver cells create enzyme and heart cells cannot?

Liver cells and heart cells have different functions and gene expressions. Liver cells are capable of producing a wide variety of enzymes involved in metabolism and detoxification, while heart cells primarily focus on contracting and pumping blood. The specific genes that code for enzyme production are more actively expressed in liver cells compared to heart cells.


How does DNA make a muscle cell different from a liver cell?

Muscle cells and liver cells have the same DNA, but they express different genes. This differential gene expression determines the unique characteristics and functions of each type of cell. Muscle cells express genes related to movement and contraction, while liver cells express genes related to metabolism and detoxification.


Does a cheek cell contain the same chromosomes as a liver cell?

Yes. In an individual, almost all cells contain DNA (Red Blood Cells do not). That DNA is tightly wound like you would twist a drawstring, and kept tightly coiled as chromosomes. Since chromosomes can be found in a cheek cell, a liver cell (hepatocyte), and almost all other cells, they all contain the same chromosomes, which inevitably have the same genes. What makes cheek cells different from liver cells is which genes are turned on and off. Cheek cells have different genes turned on compared to liver cells.


Why must certain genes in eukaryotic cells be present in multiple copies?

To produse RNA


Are genes present in plant cells?

Yes because plant cells go through Mitosis and Meiosis just like animal cells


Do eukaryotic cells have genes?

All cells have genes


Why liver and skull cell are different but have same DNA?

The DNA in every cell contains a complete copy of the data needed to build a human body, however, in differentiated cells (everything but stem cells), not all of it is active. Some of it is turned on and some of it is turned off. So in a bone cell, the parts relating to bone formation are on, while a cell from a liver would have other parts on. Incidentally, there's no such thing as a "liver cell". Livers are made of different types of cells, the main type being parenchymal cells.


How could a substance that stops the synthesis of m RNA?

An inhibition of mRNA synthesis will not only affect the liver but all organs and the body itself. Cells transcribe DNA to mRNA which is translated into the cytosol to proteins. The proteins in liver cells will work in various capacities to help it fulfill its function of detoxification and processing. If these proteins are not present in liver cells, the cells will eventually die, as will the liver itself.


Do liver and kidney cells contain different genes?

If the cells are part of the same organism, then no, they don't contain different genes. This is a common misconception - although the two cells have very different functions, they have the exact same DNA. The difference is due to the way the DNA is transcribed and translated. Genes that function as enzymes in the liver will be present in the DNA of a kidney cell, but it won't be expressed into the polypeptide. There are a variety of factors that may "turn off" a gene, some of which include histone acetylation and DNA methylation. If nucleosomes in a chromosome are not acetylated, then they will be more condensed into one area. This in turn may block the RNA polymerase from attaching to a promoter sequence and transcribing the gene. Similarly, methyl groups can bond to the gene, blocking RNA polymerase. This ensures that genes that usually function in different organs aren't expressed.


How do genes affect cells?

Genes tell cells how to make proteins.