Yes, that is the way I figure it. The DNA remains the way it is unless it gets zapped by radiation or a natural or man-made chemical that damages or breaks the DNA. The DNA is a very complicated molecule so there is no way of telling what the result will be until the plant reproduces by seed or its normal method of propagation.
A bit of twisting of new leaves or a stem on a young plant is normal and part of the way the plant grows. Yet we hear/read so many asking what is causing the mutation. These changes in the way new grow appears is not a mutation. It is not much more than the way the plant reacts to various situations.
I believe that the reason some growers say that they can no longer take clones from clones is because the plant has been damaged and the genetics do not allow the healing that is necessary. The one that I have been looking at for the past several years is the vascular system. This is the system in the plant that is used for the moving of water, sugars and nutrients. What I have read does suggest that the damage to the vascular system can be permanent in that the plant cannot grow new stems which an undamaged system. So, every clone taken starts off with the damage but it is not genetic damage.
Animals are much more complicated than plants. Animals have a nervous system, a cardio vascular system with one or more hearts that pump blood from one part to another, a digestive system, muscles which allow the animal to move various parts or the entire body. And, many other systems that have allowed the animal to survive long enough to reproduce well above the replacement level. I have to believe that the entire genetic system in animals is so complex that often a change or mutation in a single gene on the DNA strand is enough to cause major problems.
It has been said that evolution is the result of continuous genetic mutations for the good or bad over the past 3.5 billion years. Yes, that is billion which has more zeros than a million
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