How and why do genetic mutations happen?
In: 2
Every cell in ones body is a variated copy of initial cell. They are copied and variated following instruction in dna. Thus if iniatial cell had damaged dna, this will be replicated through hole body. Same true if dna in cells were damaged after birth. All of that cell decendantce will carry damage unless that cell die faster. Later that body will produce eggs or semen, which will transfer dna damage to new born body (with 50% chance). Ut will be repeated unless some baby will be super lucky or new generation will die before it mate.
If such damage will be so grate that it will cause severe body missfunction then with 50% chance its offspring will have same desease.
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