Darwin merely observed Natural Selection.
Women have been chasing footballers since the cave days, because they provide more meat.
Later we became more scientific and faster at improving the productivity of plants and animals. Hence directed breeding (picking the best observed genes).
More recently we are identifying specific genes and their function.
A genetically modified organism (GMO) is modified DNA, using genetic engineering.
Transgenic is – do you really want to know?
A good example of when they found the gene in a jelly fish that glows in the dark. Isolated it, propagated it in bacteria in a Petri dish, and then inserted it into the embryo of a rabbit. Evolution on steroids!
But the best part – they bought the jelly fish gene through the internet.
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