Ared flower and a white flower produce link offspring. what condition explains this phenomenon?

The condition which explains this phenomenon is called incomplete dominance.  Two different organisms (flowers) with two different phenotypes (red and white) will produce an offspring with a third phenotype.  In this case, the third phenotype is the pink color.  It is a blending of the parent traits.  

answer:

sequence 1- deletion

                  2- duplication

                  3- insertion

                  4- substitute

                  5- inversion

colors do exist. the color of the sky is actually violet; humans percieve the color of the sky as blue.