This means being at the top of genetics. The turning on or off of certain genetics is known as epigenetics. This does not affect the DNA sequence, but it affects how it will be read. It can also be said to be the external modification of DNA and turns cells either on or off. It may live for the period a cell is still active, or it can last from childhood to adulthood. It can also be passed to the next generations at times.
It alters the physical structure of the DNA. An example of such a change is DNA methylation added to a methyl group or what is otherwise referred to as a chemical cap. This actually suppresses certain genes from being expressed. So the sequence of the DNA will appear the same, but the physical appearance of the organism will appear different.
Histone is a protein that DNA wraps itself round. This allows DNA to fit into all the cells. Without it, DNA would be very long and would not be able to fit anywhere. The DNA is also required not to wrap itself too tightly on to the histone otherwise the readability will be a challenge. There are modifications that relax the histone and make the readability easier.
The skin cells, muscle cells, and brain cells appear different in their structural formation and even functions. Yet somehow, they contain the same genetic material. These are because although they may contain the same genes, the way these genes are expressed is totally different. These are why our body parts appear to be different.
As earlier mentioned, epigenetics can be passed from one generation to the next for a long time. This is likely to happen when they are present in the sperm cell, the egg cell or in both. However, it may not happen because of the reprogramming process. This occurs when the sperm and the egg cell combine to form a whole new cell. All the epigenetics may be erased. The fetus can start afresh.
The reprogramming is not guaranteed to happen in all the cases. This means that the epigenetics may be transferred on to the fetus. The food that was ingested before conception may actually affect the future of the baby. It is therefore important to eat well. This theory is however yet to be proved to have worked in human beings.
Epigenetics may actually have a role in the development of some cancers. Some of the genes kill the ability to control how big a cell grows. This means that the cell could overgrow at a very rapid rate. It may eventually stat to inhibit normal bodily functions in various body parts. It the end, it turns out to be a tumor.
There are cells whose job is to reconstruct damaged DNA. Some epigenetics may cause this to be impossible. This means that DNA will be damaged continually with no way of getting repaired. This is one of the ways of letting cancer out.
It alters the physical structure of the DNA. An example of such a change is DNA methylation added to a methyl group or what is otherwise referred to as a chemical cap. This actually suppresses certain genes from being expressed. So the sequence of the DNA will appear the same, but the physical appearance of the organism will appear different.
Histone is a protein that DNA wraps itself round. This allows DNA to fit into all the cells. Without it, DNA would be very long and would not be able to fit anywhere. The DNA is also required not to wrap itself too tightly on to the histone otherwise the readability will be a challenge. There are modifications that relax the histone and make the readability easier.
The skin cells, muscle cells, and brain cells appear different in their structural formation and even functions. Yet somehow, they contain the same genetic material. These are because although they may contain the same genes, the way these genes are expressed is totally different. These are why our body parts appear to be different.
As earlier mentioned, epigenetics can be passed from one generation to the next for a long time. This is likely to happen when they are present in the sperm cell, the egg cell or in both. However, it may not happen because of the reprogramming process. This occurs when the sperm and the egg cell combine to form a whole new cell. All the epigenetics may be erased. The fetus can start afresh.
The reprogramming is not guaranteed to happen in all the cases. This means that the epigenetics may be transferred on to the fetus. The food that was ingested before conception may actually affect the future of the baby. It is therefore important to eat well. This theory is however yet to be proved to have worked in human beings.
Epigenetics may actually have a role in the development of some cancers. Some of the genes kill the ability to control how big a cell grows. This means that the cell could overgrow at a very rapid rate. It may eventually stat to inhibit normal bodily functions in various body parts. It the end, it turns out to be a tumor.
There are cells whose job is to reconstruct damaged DNA. Some epigenetics may cause this to be impossible. This means that DNA will be damaged continually with no way of getting repaired. This is one of the ways of letting cancer out.
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