A Researcher Has Developed Two Stains to Use for Visualizing

question 14

Multiple Choice

A researcher has developed two stains to use for visualizing different tissues of 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 he/she/they most likely observe?

• A) The pollen grains will be pure red.
• B) The pollen grains will be pure blue.
• C) The pollen grains will have red interiors and blue exteriors.
• D) The pollen grains will have blue interiors and red exteriors.

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