The development by scientists of a new color in a rose is the result of

The development by scientists of a new color in a rose is the result of genetic modification

Explanation:

The development of new colors in the species of roses is given by the genetic modification by means of the introduction of genes of other species that express other colors absent naturally in the roses. The genes that are inserted are those that encode pigmentation for a certain color.

from the original order (top to bottom) the new order will go

1 (founder)

4 (hawk)

2 (mutate)

3 (next generation)

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