Is it due to attachement of bronken part of one chromosome to another. I hope this helps.
Because if there is a minimal variation of it the normal state of pH, it can cause severe effects in the brain, arteries, the heart, and other organs.
In other words, it can have some serious effects on the body systems that can lead big diseases, like cancer.
The Ecosystem will be out of balance.
Any condition in an experiment that can be changed is a control variable!!
You control it!!