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.
DNA wraps itself around a protein known as histone. This protein is what enables the comfortable accommodation of DNA inside a cell. Otherwise, the DNA will be too long to fit into one cell. If the histone is too tight on the DNA, the cell cannot recognize it. There are however modifications that relax histones so that the genetic material can be readable in cells.
Various genes express themselves differently depending on how strong and their functionality at different intervals. This is why the skin cell, brain cells, and muscle cells appear to be very different yet they have the same genetic composition. The fact that these cells are different is the reason why our body parts are also different. They, however, work together in order to conduct bodily functions and to the purpose they are intended to undertake on that instant.
Epigenetics can be passed on to different generations, but this is not always the case. They may be in the egg cell, the sperm cell or in both. Once the egg and sperm fuse, they may undergo a process known as reprogramming. This is when all the previous genes are erased, and the fetus is formed. The fetus can then start from scratch forming its own epigenetics.
This is however not always the case. Some of this genetics are resistant to the reprogramming process. This means that that genetics is going to be passed on to the child once the egg is fertilized. This means like factors such as food ingested before the conception of the child, may actually affect the future of the child. It is however yet to be proven in human beings.
Scientists seem to have the idea that some epigenetics have the ability to control cancer. Some epigenetics may suppress the ability of a cell to control its growth. The cell overgrows and begins to hinder the normal functioning of the body and the others surrounding it. This is what comes 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.
DNA wraps itself around a protein known as histone. This protein is what enables the comfortable accommodation of DNA inside a cell. Otherwise, the DNA will be too long to fit into one cell. If the histone is too tight on the DNA, the cell cannot recognize it. There are however modifications that relax histones so that the genetic material can be readable in cells.
Various genes express themselves differently depending on how strong and their functionality at different intervals. This is why the skin cell, brain cells, and muscle cells appear to be very different yet they have the same genetic composition. The fact that these cells are different is the reason why our body parts are also different. They, however, work together in order to conduct bodily functions and to the purpose they are intended to undertake on that instant.
Epigenetics can be passed on to different generations, but this is not always the case. They may be in the egg cell, the sperm cell or in both. Once the egg and sperm fuse, they may undergo a process known as reprogramming. This is when all the previous genes are erased, and the fetus is formed. The fetus can then start from scratch forming its own epigenetics.
This is however not always the case. Some of this genetics are resistant to the reprogramming process. This means that that genetics is going to be passed on to the child once the egg is fertilized. This means like factors such as food ingested before the conception of the child, may actually affect the future of the child. It is however yet to be proven in human beings.
Scientists seem to have the idea that some epigenetics have the ability to control cancer. Some epigenetics may suppress the ability of a cell to control its growth. The cell overgrows and begins to hinder the normal functioning of the body and the others surrounding it. This is what comes 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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