As you said, not all genetically identical clones are identical in appearance. And many identical twins have very different personalities, etc. Most scientists are now willing to admit that environment can and does play an important role in inheritance, and that modifications to the genes of genetically identical individuals do occur. The most classic example is calico cats. They are virtually all female (genetics of this is well understood), but the orange and black coat colour genes are modified differently in each individual cat. So if you clone a calico cat, none of the clones will look the same.
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Today's Featured Article - Fasteners: The Nuts and Bolts of Nuts and Bolts - by Curtis Von Fange. The nuts and bolts of nuts and bolts is an interesting and essential piece of knowledge that applies to our older tractors. An improperly torqued capscrew on an engine head or a shear bolt that is too hard on the driving shaft of a bushog can create havoc and make an expensive and uncalled for repair. Let’s examine the purpose and design of these fasteners in order to ensure their proper use. Fasteners are probably one of the aspects of mechanics that is given the least amount of thought.
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