A researcher has developed two stains for use with seed plants.One stains sporophyte tissue blue;the other stains gametophyte tissue red.If the researcher exposes pollen grains to both stains and then rinses away the excess stain,what will occur?

Question

Quizplus · Accepted Answer

The pollen grains are haploid and produced by the male gametophyte. Therefore, they will be stained red since they are gametophyte tissue. However, if they were exposed to the blue stain before being exposed to the red stain, they will also retain some of the blue stain on the exterior of the pollen grain. Therefore, the pollen grains will have red interiors and blue exteriors.

A Researcher Has Developed Two Stains for Use with Seed