Which Punnett square represents a cross between two parents that are heterozygous for purple flowers?

Although your picture isn't showing up for me, this Punnett Square I drew should give you somewhat of an idea for the answer.

Red is Dominant, Blue is Recessive.

The Purple boxes show a purple flower, while that last box with 2 Recessive genes shows a white flower.

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chromosomes carry the genetic information for organisms. also, chromatin is the thread like dna which is located in the nucleus of an organism.