They all have different compositions of protons, neutrons, and electrons. This causes variety and makes atoms different so they can make up different substances
Given what we know, we can confirm that the process of differentiation alters the cells by changing the expression of genes in a cell.
<h3>What is differentiation?</h3>
- differentiation is when a cell becomes specialized.
- This is the case with heart or digestive cells.
- Since all cells carry the same DNA, this does not account for differentiation.
- Instead, this is achieved by changing the expression of genes in a cell.
Therefore, we can confirm that differentiation is what we refer to as a cell becoming specialized in one way or function, such is the case with heart cells or digestive cells, and since all cells in the body carry the same DNA, this is done by changing the way in which the cells express their genes in the DNA.
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<span>Neutral mutations are neither harmful nor beneficial.
Therefore, they are invisible to natural selection. (Since they neither improve nor worsen one individual's chances of survival and reproduction over another.)
However neutral mutations can still spread into the population by just random replications and matings. This is called genetic drift.
In other words, they are 'silent'. They are mutations that exist and propagate in populations, but seem to have no effect at all.
The reason they can become important to evolution is that a day can come when they *do* have an effect. In other words, even though an individual mutation may have no immediate effect on survival or reproduction, a *combination* of neutral mutations may provide some new benefit or harm ... at which point natural selection *will* act on that combination.
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