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They do. to some extent. If you look at different twigs from different trees, you will see that, for example, the leaves will perhaps grow in pairs, along the same edge of the branch, or in pairs, alternating on the side of the branch, or in a spiral along the branch etc.(always the same way for the same species of tree) The secondary branches also follow a specific pattern of growth, that is genetically determined. As trees keep on growing, unlike us, this pattern of growth will give generally similar trees within a species, but as light, temperature, wind, rain etc etc will influence just when the next branch will occur, and the bigger the tree gets the less synchronized the growth will be no two trees will be exactly the same.